Bump up the versions of the plugins that communicate with the server

This is a fix for the issue where the relative URL code on iOS doesn't work per
documentation.

Relative URL doesn't work: e-mission/e-mission-docs#732 (comment)
Appending strings does work: e-mission/e-mission-docs#732 (comment)

Includes fixes to:
- connection settings to return a string instead of a URL
    e-mission/cordova-connection-settings#22
- server-communication and server-sync to concatenate directly using strings
  instead of using a relative URL
    e-mission/cordova-server-communication#30
    e-mission/cordova-server-sync#52

config.xml

@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget android-versionCode="46" id="edu.berkeley.eecs.emission" ios-CFBundleVersion="44" version="3.2.3" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget android-versionCode="47" id="edu.berkeley.eecs.emission" ios-CFBundleVersion="45" version="3.2.4" xmlns="http://www.w3.org/ns/widgets" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <name>em-devapp</name>
     <description>
         The emission Developer app is a clone of the PhoneGap Developer app with the emission plugins. It is a testing utility for web developers and designers using the emission platform. After installing this app on your device or simulator you will be able to use phonegap serve to autorefresh without re-deploying the app everytime.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "phonegap-app-developer",
-  "version": "3.2.3",
+  "version": "3.2.4",
   "description": "PhoneGap Developer app.",
   "homepage": "http://app.phonegap.com",
   "repository": {
@@ -106,9 +106,9 @@
     "cordova-plugin-device": "2.0.3",
     "cordova-plugin-em-datacollection": "git+https://github.com/e-mission/e-mission-data-collection.git#v1.7.2",
     "cordova-plugin-em-jwt-auth": "git+https://github.com/e-mission/cordova-jwt-auth.git#v1.6.5",
-    "cordova-plugin-em-server-communication": "git+https://github.com/e-mission/cordova-server-communication.git#v1.2.3",
-    "cordova-plugin-em-serversync": "git+https://github.com/e-mission/cordova-server-sync.git#v1.2.8",
-    "cordova-plugin-em-settings": "git+https://github.com/e-mission/cordova-connection-settings.git#v1.2.2",
+    "cordova-plugin-em-server-communication": "git+https://github.com/e-mission/cordova-server-communication.git#v1.2.4",
+    "cordova-plugin-em-serversync": "git+https://github.com/e-mission/cordova-server-sync.git#v1.2.9",
+    "cordova-plugin-em-settings": "git+https://github.com/e-mission/cordova-connection-settings.git#v1.2.3",
     "cordova-plugin-em-transition-notify": "git+https://github.com/e-mission/e-mission-transition-notify.git#v1.2.7",
     "cordova-plugin-em-unifiedlogger": "git+https://github.com/e-mission/cordova-unified-logger.git#v1.3.5",
     "cordova-plugin-em-usercache": "git+https://github.com/e-mission/cordova-usercache.git#v1.1.5",