Merge pull request #150 from whym/minify2

Update Acra

commons/app/build.gradle

@@ -6,7 +6,7 @@ dependencies {
     compile 'in.yuvi:http.fluent:1.3'
     compile 'com.android.volley:volley:1.0.0'
     compile 'com.nostra13.universalimageloader:universal-image-loader:1.8.4'
-    compile 'ch.acra:acra:4.5.0'
+    compile 'ch.acra:acra:4.7.0'
     compile 'org.mediawiki:api:1.3'
     compile 'commons-codec:commons-codec:1.10'
     compile 'com.android.support:support-v4:23.4.0'

commons/app/src/main/java/fr/free/nrw/commons/CommonsApplication.java

@@ -35,7 +35,7 @@ import fr.free.nrw.commons.data.*;
 import com.android.volley.toolbox.*;
 
 // TODO: Use ProGuard to rip out reporting when publishing
-@ReportsCrashes(formKey = "",
+@ReportsCrashes(
         mailTo = "commons-app-android@googlegroups.com",
         mode = ReportingInteractionMode.DIALOG,
         resDialogText = R.string.crash_dialog_text,