Make it possible to have dev & prod version of zulip installed simultaneously.

Note that this (most likely) breaks notifications for the dev version of the build.

Author: niftynei

app/build.gradle

@@ -15,9 +15,14 @@ android {
         testInstrumentationRunner "android.test.InstrumentationTestRunner"
     }
     buildTypes {
+        debug {
+            applicationIdSuffix '.dev'
+            manifestPlaceholders = [ permissionPackage : "com.humbughq.mobile.dev"]
+        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
+            manifestPlaceholders = [ permissionPackage : "com.humbughq.mobile"]
         }
     }
     useLibrary  'org.apache.http.legacy'

app/src/main/AndroidManifest.xml

@@ -9,10 +9,10 @@
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
 
     <permission
-        android:name="com.humbughq.mobile.permission.C2D_MESSAGE"
+        android:name="${permissionPackage}.permission.C2D_MESSAGE"
         android:protectionLevel="signature" />
 
-    <uses-permission android:name="com.humbughq.mobile.permission.C2D_MESSAGE" />
+    <uses-permission android:name="${permissionPackage}.permission.C2D_MESSAGE" />
     <uses-permission android:name="android.permission.USE_CREDENTIALS"/>
     <uses-permission android:name="android.permission.VIBRATE"/>