Renaming the bundle and package Ids (#721)

* Renamed to com.mattermost.rnbeta

* Fastlane for release of com.mattermost.rn

* Do not Publish apps directly to production

* Change ios icon format from jpeg to png

android/app/src/main/java/com/mattermost/rnbeta/MainActivity.java

@@ -0,0 +1,67 @@
+package com.mattermost.rnbeta;
+
+import com.github.yamill.orientation.OrientationPackage;
+import com.psykar.cookiemanager.CookieManagerPackage;
+import com.BV.LinearGradient.LinearGradientPackage;
+
+import com.reactnativenavigation.controllers.SplashActivity;
+
+import java.lang.ref.WeakReference;
+
+import android.content.Context;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.graphics.Color;
+import android.widget.TextView;
+import android.view.ViewGroup.LayoutParams;
+import android.view.Gravity;
+import android.util.TypedValue;
+
+public class MainActivity extends SplashActivity {
+
+    private static ImageView imageView;
+    private static WeakReference<MainActivity> wr_activity;
+    protected static MainActivity getActivity() {
+        return wr_activity.get();
+    }
+
+    /**
+     * Returns the name of the main component registered from JavaScript.
+     * This is used to schedule rendering of the component.
+     */
+    // @Override
+    // protected String getMainComponentName() {
+    //     return "Mattermost";
+    // }
+
+    @Override
+    public LinearLayout createSplashLayout() {
+        wr_activity = new WeakReference<>(this);
+        final int drawableId = getImageId();
+
+        Context context = getActivity();
+        imageView = new ImageView(context);
+        imageView.setImageResource(drawableId);
+
+        LayoutParams layoutParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
+        imageView.setLayoutParams(layoutParams);
+
+        imageView.setScaleType(ImageView.ScaleType.CENTER);
+
+        LinearLayout view = new LinearLayout(this);
+
+        view.setBackgroundColor(Color.parseColor("#FFFFFF"));
+        view.setGravity(Gravity.CENTER);
+
+        view.addView(imageView);
+        return view;
+    }
+
+    private static int getImageId() {
+        int drawableId = getActivity().getResources().getIdentifier("splash", "drawable", getActivity().getClass().getPackage().getName());
+        if (drawableId == 0) {
+            drawableId = getActivity().getResources().getIdentifier("splash", "drawable", getActivity().getPackageName());
+        }
+        return drawableId;
+    }
+}