diff --git a/functions/package-lock.json b/functions/package-lock.json
index 4a9337f..6b9439c 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -370,15 +370,6 @@
       "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-2.3.3.tgz",
       "integrity": "sha512-MDQLxNFRLasqS4UlkWMSACMKeSm1x4Q3TxzUC7KQUsh6RK1ZrQ0VEyE3yzXcBu+K8ejVj4wuX32eUG02yNp+YQ=="
     },
-    "accepts": {
-      "version": "1.3.5",
-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
-      "requires": {
-        "mime-types": "~2.1.18",
-        "negotiator": "0.6.1"
-      }
-    },
     "acorn": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
@@ -648,38 +639,6 @@
         "tweetnacl": "^0.14.3"
       }
     },
-    "body-parser": {
-      "version": "1.18.2",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.2.tgz",
-      "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
-      "requires": {
-        "bytes": "3.0.0",
-        "content-type": "~1.0.4",
-        "debug": "2.6.9",
-        "depd": "~1.1.1",
-        "http-errors": "~1.6.2",
-        "iconv-lite": "0.4.19",
-        "on-finished": "~2.3.0",
-        "qs": "6.5.1",
-        "raw-body": "2.3.2",
-        "type-is": "~1.6.15"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        },
-        "qs": {
-          "version": "6.5.1",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.1.tgz",
-          "integrity": "sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A=="
-        }
-      }
-    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -772,11 +731,6 @@
         }
       }
     },
-    "bytes": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
-      "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
-    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -793,6 +747,15 @@
         "unset-value": "^1.0.0"
       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "call-me-maybe": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/call-me-maybe/-/call-me-maybe-1.0.1.tgz",
@@ -1018,21 +981,11 @@
         "xdg-basedir": "^3.0.0"
       }
     },
-    "content-disposition": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
-    },
     "content-type": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
       "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
     },
-    "cookie": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
-    },
     "cookie-signature": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
@@ -1211,16 +1164,6 @@
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
     },
-    "depd": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
-      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
-    },
-    "destroy": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
-    },
     "diff-match-patch": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/diff-match-patch/-/diff-match-patch-1.0.1.tgz",
@@ -1521,42 +1464,89 @@
       }
     },
     "express": {
-      "version": "4.16.3",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.16.3.tgz",
-      "integrity": "sha1-avilAjUNsyRuzEvs9rWjTSL37VM=",
+      "version": "4.18.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
+      "integrity": "sha512-5/PsL6iGPdfQ/lKM1UuielYgv3BUoJfz1aUwU9vHZ+J7gyvwdQXFEBIEIaxeGf0GIcreATNyBExtalisDbuMqQ==",
       "requires": {
-        "accepts": "~1.3.5",
+        "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.18.2",
-        "content-disposition": "0.5.2",
+        "body-parser": "1.20.1",
+        "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
-        "cookie": "0.3.1",
+        "cookie": "0.5.0",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
-        "depd": "~1.1.2",
+        "depd": "2.0.0",
         "encodeurl": "~1.0.2",
         "escape-html": "~1.0.3",
         "etag": "~1.8.1",
-        "finalhandler": "1.1.1",
+        "finalhandler": "1.2.0",
         "fresh": "0.5.2",
+        "http-errors": "2.0.0",
         "merge-descriptors": "1.0.1",
         "methods": "~1.1.2",
-        "on-finished": "~2.3.0",
-        "parseurl": "~1.3.2",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
         "path-to-regexp": "0.1.7",
-        "proxy-addr": "~2.0.3",
-        "qs": "6.5.1",
-        "range-parser": "~1.2.0",
-        "safe-buffer": "5.1.1",
-        "send": "0.16.2",
-        "serve-static": "1.13.2",
-        "setprototypeof": "1.1.0",
-        "statuses": "~1.4.0",
-        "type-is": "~1.6.16",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.11.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.18.0",
+        "serve-static": "1.15.0",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "type-is": "~1.6.18",
         "utils-merge": "1.0.1",
         "vary": "~1.1.2"
       },
       "dependencies": {
+        "accepts": {
+          "version": "1.3.8",
+          "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+          "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+          "requires": {
+            "mime-types": "~2.1.34",
+            "negotiator": "0.6.3"
+          }
+        },
+        "body-parser": {
+          "version": "1.20.1",
+          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
+          "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+          "requires": {
+            "bytes": "3.1.2",
+            "content-type": "~1.0.4",
+            "debug": "2.6.9",
+            "depd": "2.0.0",
+            "destroy": "1.2.0",
+            "http-errors": "2.0.0",
+            "iconv-lite": "0.4.24",
+            "on-finished": "2.4.1",
+            "qs": "6.11.0",
+            "raw-body": "2.5.1",
+            "type-is": "~1.6.18",
+            "unpipe": "1.0.0"
+          }
+        },
+        "bytes": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+          "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg=="
+        },
+        "content-disposition": {
+          "version": "0.5.4",
+          "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
+          "integrity": "sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==",
+          "requires": {
+            "safe-buffer": "5.2.1"
+          }
+        },
+        "cookie": {
+          "version": "0.5.0",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
+          "integrity": "sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw=="
+        },
         "debug": {
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -1565,15 +1555,195 @@
             "ms": "2.0.0"
           }
         },
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "destroy": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
+          "integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg=="
+        },
+        "finalhandler": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.2.0.tgz",
+          "integrity": "sha512-5uXcUVftlQMFnWC9qu/svkWv3GTd2PfUhK/3PLkYNAe7FbqJMt3515HaxE6eRL74GdsriiwujiawdaB1BpEISg==",
+          "requires": {
+            "debug": "2.6.9",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "on-finished": "2.4.1",
+            "parseurl": "~1.3.3",
+            "statuses": "2.0.1",
+            "unpipe": "~1.0.0"
+          }
+        },
+        "forwarded": {
+          "version": "0.2.0",
+          "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+          "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow=="
+        },
+        "http-errors": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
+          "integrity": "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ==",
+          "requires": {
+            "depd": "2.0.0",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": "2.0.1",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "iconv-lite": {
+          "version": "0.4.24",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "ipaddr.js": {
+          "version": "1.9.1",
+          "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
+          "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g=="
+        },
+        "mime": {
+          "version": "1.6.0",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+          "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
+        },
+        "mime-db": {
+          "version": "1.52.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+          "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg=="
+        },
+        "mime-types": {
+          "version": "2.1.35",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+          "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+          "requires": {
+            "mime-db": "1.52.0"
+          }
+        },
+        "negotiator": {
+          "version": "0.6.3",
+          "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+          "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg=="
+        },
+        "on-finished": {
+          "version": "2.4.1",
+          "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
+          "integrity": "sha512-oVlzkg3ENAhCk2zdv7IJwd/QUD4z2RxRwpkcGY8psCVcCYZNq4wYnVWALHM+brtuJjePWiYF/ClmuDr8Ch5+kg==",
+          "requires": {
+            "ee-first": "1.1.1"
+          }
+        },
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        },
+        "proxy-addr": {
+          "version": "2.0.7",
+          "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
+          "integrity": "sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==",
+          "requires": {
+            "forwarded": "0.2.0",
+            "ipaddr.js": "1.9.1"
+          }
+        },
         "qs": {
-          "version": "6.5.1",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.1.tgz",
-          "integrity": "sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A=="
+          "version": "6.11.0",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.0.tgz",
+          "integrity": "sha512-MvjoMCJwEarSbUYk5O+nmoSzSutSsTwF85zcHPQ9OrlFoZOYIjaqBAJIqIXjptyD5vThxGq52Xu/MaJzRkIk4Q==",
+          "requires": {
+            "side-channel": "^1.0.4"
+          }
+        },
+        "range-parser": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+          "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
+        },
+        "raw-body": {
+          "version": "2.5.1",
+          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
+          "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+          "requires": {
+            "bytes": "3.1.2",
+            "http-errors": "2.0.0",
+            "iconv-lite": "0.4.24",
+            "unpipe": "1.0.0"
+          }
         },
         "safe-buffer": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
-          "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        },
+        "send": {
+          "version": "0.18.0",
+          "resolved": "https://registry.npmjs.org/send/-/send-0.18.0.tgz",
+          "integrity": "sha512-qqWzuOjSFOuqPjFe4NOsMLafToQQwBSOEpS+FwEt3A2V3vKubTquT3vmLTQpFgMXp8AlFWFuP1qKaJZOtPpVXg==",
+          "requires": {
+            "debug": "2.6.9",
+            "depd": "2.0.0",
+            "destroy": "1.2.0",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "etag": "~1.8.1",
+            "fresh": "0.5.2",
+            "http-errors": "2.0.0",
+            "mime": "1.6.0",
+            "ms": "2.1.3",
+            "on-finished": "2.4.1",
+            "range-parser": "~1.2.1",
+            "statuses": "2.0.1"
+          },
+          "dependencies": {
+            "ms": {
+              "version": "2.1.3",
+              "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+              "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+            }
+          }
+        },
+        "serve-static": {
+          "version": "1.15.0",
+          "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.15.0.tgz",
+          "integrity": "sha512-XGuRDNjXUijsUL0vl6nSD7cwURuzEgglbOaFuZM9g3kwDXOWVTck0jLzjPzGD+TazWbboZYu52/9/XPdUgne9g==",
+          "requires": {
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "parseurl": "~1.3.3",
+            "send": "0.18.0"
+          }
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        },
+        "type-is": {
+          "version": "1.6.18",
+          "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+          "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+          "requires": {
+            "media-typer": "0.3.0",
+            "mime-types": "~2.1.24"
+          }
         }
       }
     },
@@ -1753,30 +1923,6 @@
         }
       }
     },
-    "finalhandler": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
-      "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
-      "requires": {
-        "debug": "2.6.9",
-        "encodeurl": "~1.0.2",
-        "escape-html": "~1.0.3",
-        "on-finished": "~2.3.0",
-        "parseurl": "~1.3.2",
-        "statuses": "~1.4.0",
-        "unpipe": "~1.0.0"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
-      }
-    },
     "firebase-admin": {
       "version": "5.12.1",
       "resolved": "https://registry.npmjs.org/firebase-admin/-/firebase-admin-5.12.1.tgz",
@@ -1875,11 +2021,6 @@
         "mime-types": "^2.1.12"
       }
     },
-    "forwarded": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
-    },
     "fragment-cache": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
@@ -1898,6 +2039,11 @@
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
+    },
     "functional-red-black-tree": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz",
@@ -1925,6 +2071,16 @@
         "stream-events": "^1.0.3"
       }
     },
+    "get-intrinsic": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.3.tgz",
+      "integrity": "sha512-QJVz1Tj7MS099PevUG5jvnt9tSkXN8K14dxQlikJuPt4uD9hHAHjLyLBiLR5zELelBdD9QNRAXZzsJx0WaDL9A==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.3"
+      }
+    },
     "get-value": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/get-value/-/get-value-2.0.6.tgz",
@@ -2529,6 +2685,14 @@
         "har-schema": "^2.0.0"
       }
     },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-ansi": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
@@ -2544,6 +2708,11 @@
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
+    "has-symbols": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
+      "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A=="
+    },
     "has-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-value/-/has-value-1.0.0.tgz",
@@ -2581,17 +2750,6 @@
         "through2": "^2.0.0"
       }
     },
-    "http-errors": {
-      "version": "1.6.3",
-      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
-      "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
-      "requires": {
-        "depd": "~1.1.2",
-        "inherits": "2.0.3",
-        "setprototypeof": "1.1.0",
-        "statuses": ">= 1.4.0 < 2"
-      }
-    },
     "http-parser-js": {
       "version": "0.4.13",
       "resolved": "https://registry.npmjs.org/http-parser-js/-/http-parser-js-0.4.13.tgz",
@@ -2610,7 +2768,8 @@
     "iconv-lite": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.19.tgz",
-      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ=="
+      "integrity": "sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==",
+      "dev": true
     },
     "ignore": {
       "version": "3.3.10",
@@ -2701,11 +2860,6 @@
       "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-1.0.0.tgz",
       "integrity": "sha1-EEqOSqym09jNFXqO+L+rLXo//bY="
     },
-    "ipaddr.js": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.6.0.tgz",
-      "integrity": "sha1-4/o1e3c9phnybpXwSdBVxyeW+Gs="
-    },
     "is": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/is/-/is-3.2.1.tgz",
@@ -3247,11 +3401,6 @@
       "integrity": "sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=",
       "dev": true
     },
-    "negotiator": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.1.tgz",
-      "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
-    },
     "node-forge": {
       "version": "0.7.4",
       "resolved": "https://registry.npmjs.org/node-forge/-/node-forge-0.7.4.tgz",
@@ -3300,6 +3449,11 @@
         }
       }
     },
+    "object-inspect": {
+      "version": "1.12.2",
+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.12.2.tgz",
+      "integrity": "sha512-z+cPxW0QGUp0mcqcsgQyLVRDoXFQbXOwBaqyF7VIgI4TWNQsDHrBpUQslRmIfAoYWdYzs6UlKJtB2XJpTaNSpQ=="
+    },
     "object-keys": {
       "version": "1.0.12",
       "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.0.12.tgz",
@@ -3321,14 +3475,6 @@
         "isobject": "^3.0.1"
       }
     },
-    "on-finished": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
-      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
-      "requires": {
-        "ee-first": "1.1.1"
-      }
-    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -3379,11 +3525,6 @@
       "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
       "dev": true
     },
-    "parseurl": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
-      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M="
-    },
     "pascalcase": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/pascalcase/-/pascalcase-0.1.1.tgz",
@@ -3600,15 +3741,6 @@
         "long": "^4.0.0"
       }
     },
-    "proxy-addr": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.3.tgz",
-      "integrity": "sha512-jQTChiCJteusULxjBp8+jftSQE5Obdl3k4cnmLA6WXtK6XFuWRnvVL7aCiBqaLPM8c4ph0S4tKna8XvmIwEnXQ==",
-      "requires": {
-        "forwarded": "~0.1.2",
-        "ipaddr.js": "1.6.0"
-      }
-    },
     "pseudomap": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
@@ -3639,48 +3771,9 @@
       "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
     },
     "qs": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-      "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
-    },
-    "range-parser": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.0.tgz",
-      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
-    },
-    "raw-body": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.2.tgz",
-      "integrity": "sha1-vNYMd9Prk83gBQKVw/N5OJvIj4k=",
-      "requires": {
-        "bytes": "3.0.0",
-        "http-errors": "1.6.2",
-        "iconv-lite": "0.4.19",
-        "unpipe": "1.0.0"
-      },
-      "dependencies": {
-        "depd": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.1.tgz",
-          "integrity": "sha1-V4O04cRZ8G+lyif5kfPQbnoxA1k="
-        },
-        "http-errors": {
-          "version": "1.6.2",
-          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.2.tgz",
-          "integrity": "sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=",
-          "requires": {
-            "depd": "1.1.1",
-            "inherits": "2.0.3",
-            "setprototypeof": "1.0.3",
-            "statuses": ">= 1.3.1 < 2"
-          }
-        },
-        "setprototypeof": {
-          "version": "1.0.3",
-          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.0.3.tgz",
-          "integrity": "sha1-ZlZ+NwQ+608E2RvWWMDL77VbjgQ="
-        }
-      }
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.3.tgz",
+      "integrity": "sha512-qxXIEh4pCGfHICj1mAJQ2/2XVZkjCDTcEgfoSQxc/fYivUZxTkk7L3bDBJSoNrEzXI17oUO5Dp07ktqE5KzczA=="
     },
     "readable-stream": {
       "version": "2.3.6",
@@ -3855,52 +3948,6 @@
       "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
       "dev": true
     },
-    "send": {
-      "version": "0.16.2",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
-      "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
-      "requires": {
-        "debug": "2.6.9",
-        "depd": "~1.1.2",
-        "destroy": "~1.0.4",
-        "encodeurl": "~1.0.2",
-        "escape-html": "~1.0.3",
-        "etag": "~1.8.1",
-        "fresh": "0.5.2",
-        "http-errors": "~1.6.2",
-        "mime": "1.4.1",
-        "ms": "2.0.0",
-        "on-finished": "~2.3.0",
-        "range-parser": "~1.2.0",
-        "statuses": "~1.4.0"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        },
-        "mime": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
-          "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ=="
-        }
-      }
-    },
-    "serve-static": {
-      "version": "1.13.2",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
-      "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
-      "requires": {
-        "encodeurl": "~1.0.2",
-        "escape-html": "~1.0.3",
-        "parseurl": "~1.3.2",
-        "send": "0.16.2"
-      }
-    },
     "set-value": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
@@ -3922,11 +3969,6 @@
         }
       }
     },
-    "setprototypeof": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
-      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
-    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -3942,6 +3984,16 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
       "dev": true
     },
+    "side-channel": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",
+      "integrity": "sha512-q5XPytqFEIKHkGdiMIrY10mvLRvnQh42/+GoBlFW3b2LXLE2xxJpZFdm94we0BaoV3RwJyGqg5wS7epxTv0Zvw==",
+      "requires": {
+        "call-bind": "^1.0.0",
+        "get-intrinsic": "^1.0.2",
+        "object-inspect": "^1.9.0"
+      }
+    },
     "signal-exit": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
@@ -4158,11 +4210,6 @@
         }
       }
     },
-    "statuses": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
-      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
-    },
     "stream-events": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.4.tgz",
@@ -4349,6 +4396,11 @@
         "repeat-string": "^1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "tough-cookie": {
       "version": "2.3.4",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
@@ -4390,15 +4442,6 @@
         "prelude-ls": "~1.1.2"
       }
     },
-    "type-is": {
-      "version": "1.6.16",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
-      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
-      "requires": {
-        "media-typer": "0.3.0",
-        "mime-types": "~2.1.18"
-      }
-    },
     "type-name": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/type-name/-/type-name-2.0.2.tgz",