Added enable the fragment debugging for test builds.

Author: DenBond7

FlowCrypt/src/main/java/com/flowcrypt/email/FlowCryptApplication.java

@@ -8,6 +8,7 @@
 
 import android.app.Application;
 import android.content.Context;
+import android.support.v4.app.FragmentManager;
 import android.support.v7.preference.PreferenceManager;
 
 import com.flowcrypt.email.util.SharedPreferencesHelper;
@@ -35,6 +36,7 @@ public class FlowCryptApplication extends Application {
     public void onCreate() {
         super.onCreate();
         intiLeakCanary();
+        FragmentManager.enableDebugLogging(BuildConfig.DEBUG);
     }
 
     @Override