Bump up the server communication plugin version

To https://github.com/e-mission/cordova-server-communication/releases/tag/v1.2.1
which finally fixes e-mission/e-mission-docs#333

config.cordovabuild.xml

@@ -109,7 +109,7 @@
     </plugin>
     <preference name="SplashShowOnlyFirstTime" value="false" />
     <plugin name="edu.berkeley.eecs.emission.cordova.auth" spec="https://github.com/e-mission/cordova-jwt-auth.git#v1.5.0" />
-    <plugin name="edu.berkeley.eecs.emission.cordova.comm" spec="https://github.com/e-mission/cordova-server-communication.git#v1.2.0" />
+    <plugin name="edu.berkeley.eecs.emission.cordova.comm" spec="https://github.com/e-mission/cordova-server-communication.git#v1.2.1" />
     <plugin name="edu.berkeley.eecs.emission.cordova.datacollection" spec="https://github.com/e-mission/e-mission-data-collection.git#v1.3.3">
         <variable name="LOCATION_VERSION" value="11.0.1" />
     </plugin>

package.cordovabuild.json

@@ -65,7 +65,7 @@
     "e-mission-data-collection": "git+https://github.com/e-mission/e-mission-data-collection.git#v1.3.3",
     "em-cordova-connection-settings": "git+https://github.com/e-mission/cordova-connection-settings.git#v1.2.0",
     "em-cordova-jwt-auth": "git+https://github.com/e-mission/cordova-jwt-auth.git#v1.5.0",
-    "em-cordova-server-communication": "git+https://github.com/e-mission/cordova-server-communication.git#v1.2.0",
+    "em-cordova-server-communication": "git+https://github.com/e-mission/cordova-server-communication.git#v1.2.1",
     "em-cordova-server-sync": "git+https://github.com/e-mission/cordova-server-sync.git#v1.1.2",
     "em-cordova-transition-notify": "git+https://github.com/e-mission/e-mission-transition-notify.git#v1.2.0",
     "em-cordova-unified-logger": "git+https://github.com/e-mission/cordova-unified-logger.git#v1.3.1",