Merge pull request #239 from petterh/remove-allowBackup

Remove android:allowBackup="true" from manifest

src/android/src/main/AndroidManifest.xml

@@ -2,7 +2,6 @@
     package="com.RNFetchBlob">
 
     <application
-        android:allowBackup="true"
         android:label="@string/app_name"
         android:supportsRtl="true">