Upgrade lib and demo projects to RN 0.51

example/android/myapplication/src/main/java/com/wix/reactnativenotifications/app/MainApplication.java

@@ -15,7 +15,7 @@ public class MainApplication extends Application implements ReactApplication {
 
     private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
         @Override
-        protected boolean getUseDeveloperSupport() {
+        public boolean getUseDeveloperSupport() {
             return BuildConfig.DEBUG;
         }
 

example/android/send_notif.py

@@ -1,3 +1,4 @@
+#!/usr/bin/python
 from urllib2 import *
 import json
 import sys