Minor changes to fix plugin (commons-app#2121)

Author: maskaravivek

app/build.gradle

@@ -229,6 +229,11 @@ if(isRunningOnTravis && file('../play.p12').exists()) {
         track = "alpha"
         userFraction = 1
         serviceAccountEmail = System.getenv("SERVICE_ACCOUNT_NAME")
-        pk12File = file("../play.p12")
+        serviceAccountCredentials = file("../play.p12")
+
+        resolutionStrategy = "auto"
+        outputProcessor { // this: ApkVariantOutput
+            versionNameOverride = "$versionNameOverride.$versionCode"
+        }
     }
 }

build.gradle

@@ -12,7 +12,7 @@ buildscript {
         classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.8.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
-        classpath 'com.github.triplet.gradle:play-publisher:1.2.2'
+        classpath "com.github.triplet.gradle:play-publisher:2.0.0-rc1"
     }
 }