Merge pull request #1155 from RocketChat/chore/increment_version_release_2_0_3

[CHORE] Increment version of the app to release 2.0.3

app/build.gradle

@@ -13,8 +13,8 @@ android {
         applicationId "chat.rocket.android"
         minSdkVersion 21
         targetSdkVersion versions.targetSdk
-        versionCode 2012
-        versionName "2.0.2"
+        versionCode 2013
+        versionName "2.0.3"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
     }