diff --git a/contracts/package-lock.json b/contracts/package-lock.json
index a42eed9..7ea5e87 100644
--- a/contracts/package-lock.json
+++ b/contracts/package-lock.json
@@ -783,7 +783,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -823,7 +823,7 @@
     },
     "commander": {
       "version": "2.8.1",
-      "resolved": "http://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
       "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
       "requires": {
         "graceful-readlink": ">= 1.0.0"
@@ -1053,7 +1053,7 @@
       "dependencies": {
         "file-type": {
           "version": "3.9.0",
-          "resolved": "http://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
+          "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
           "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek="
         },
         "get-stream": {
@@ -2013,9 +2013,9 @@
       }
     },
     "hosted-git-info": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
-      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
     "http-errors": {
@@ -2994,7 +2994,7 @@
     },
     "pify": {
       "version": "2.3.0",
-      "resolved": "http://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
       "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
     },
     "pinkie": {
@@ -3475,7 +3475,7 @@
       "dependencies": {
         "nan": {
           "version": "2.10.0",
-          "resolved": "http://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
           "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA=="
         }
       }
@@ -3542,7 +3542,7 @@
       "dependencies": {
         "fs-extra": {
           "version": "0.30.0",
-          "resolved": "http://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
           "integrity": "sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=",
           "dev": true,
           "requires": {
@@ -3760,7 +3760,7 @@
       "dependencies": {
         "bluebird": {
           "version": "2.11.0",
-          "resolved": "http://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
           "integrity": "sha1-U0uQM8AiyVecVro7Plpcqvu2UOE="
         },
         "tar": {
@@ -3906,14 +3906,6 @@
         "mime-types": "~2.1.18"
       }
     },
-    "typedarray-to-buffer": {
-      "version": "3.1.5",
-      "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
-      "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
-      "requires": {
-        "is-typedarray": "^1.0.0"
-      }
-    },
     "ultron": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
@@ -3935,7 +3927,7 @@
         },
         "buffer": {
           "version": "3.6.0",
-          "resolved": "http://registry.npmjs.org/buffer/-/buffer-3.6.0.tgz",
+          "resolved": "https://registry.npmjs.org/buffer/-/buffer-3.6.0.tgz",
           "integrity": "sha1-pyyTb3e5a/UvX357RnGAYoVR3vs=",
           "requires": {
             "base64-js": "0.0.8",
@@ -4050,14 +4042,6 @@
           "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
           "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
         },
-        "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"
-          }
-        },
         "ms": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -4289,6 +4273,29 @@
                 "nan": "^2.3.3",
                 "typedarray-to-buffer": "^3.1.2",
                 "yaeti": "^0.0.6"
+              },
+              "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"
+                  }
+                },
+                "typedarray-to-buffer": {
+                  "version": "3.1.5",
+                  "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+                  "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+                  "requires": {
+                    "is-typedarray": "^1.0.0"
+                  }
+                },
+                "yaeti": {
+                  "version": "0.0.6",
+                  "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+                  "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+                }
               }
             }
           }
@@ -4320,12 +4327,9 @@
         },
         "websocket": {
           "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-          "from": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
           "requires": {
-            "debug": "^2.2.0",
-            "nan": "^2.3.3",
-            "typedarray-to-buffer": "^3.1.2",
-            "yaeti": "^0.0.6"
+            "nan": "^2.3.3"
           }
         }
       }
@@ -4510,14 +4514,6 @@
           "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
           "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
         },
-        "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"
-          }
-        },
         "ms": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -4663,6 +4659,29 @@
                 "nan": "^2.3.3",
                 "typedarray-to-buffer": "^3.1.2",
                 "yaeti": "^0.0.6"
+              },
+              "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"
+                  }
+                },
+                "typedarray-to-buffer": {
+                  "version": "3.1.5",
+                  "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+                  "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+                  "requires": {
+                    "is-typedarray": "^1.0.0"
+                  }
+                },
+                "yaeti": {
+                  "version": "0.0.6",
+                  "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+                  "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+                }
               }
             }
           }
@@ -4683,12 +4702,9 @@
         },
         "websocket": {
           "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-          "from": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
           "requires": {
-            "debug": "^2.2.0",
-            "nan": "^2.3.3",
-            "typedarray-to-buffer": "^3.1.2",
-            "yaeti": "^0.0.6"
+            "nan": "^2.3.3"
           }
         }
       }
@@ -4781,6 +4797,21 @@
             "nan": "^2.3.3",
             "typedarray-to-buffer": "^3.1.2",
             "yaeti": "^0.0.6"
+          },
+          "dependencies": {
+            "typedarray-to-buffer": {
+              "version": "3.1.5",
+              "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+              "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+              "requires": {
+                "is-typedarray": "^1.0.0"
+              }
+            },
+            "yaeti": {
+              "version": "0.0.6",
+              "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+              "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+            }
           }
         }
       }
@@ -4822,31 +4853,6 @@
         }
       }
     },
-    "websocket": {
-      "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
-      "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
-      "requires": {
-        "debug": "^2.2.0",
-        "nan": "^2.3.3",
-        "typedarray-to-buffer": "^3.1.2",
-        "yaeti": "^0.0.6"
-      },
-      "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"
-          }
-        },
-        "ms": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-        }
-      }
-    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
@@ -4912,7 +4918,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
@@ -5007,11 +5013,6 @@
       "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
       "dev": true
     },
-    "yaeti": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
-      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
-    },
     "yallist": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
@@ -5067,7 +5068,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {