Merge branch 'master' of github.com:wix/react-native-navigation

Conflicts:
	android/app/src/main/java/com/reactnativenavigation/react/NavigationReactGateway.java

android/app/src/main/java/com/reactnativenavigation/react/NavigationReactGateway.java

@@ -106,14 +106,12 @@ private void addAdditionalReactPackagesIfNeeded(List<ReactPackage> list) {
                 return;
             }
 
-    private ReactInstanceManager createReactInstanceManager() {
-        ReactInstanceManager.Builder builder = ReactInstanceManager.builder()
-                .setUseOldBridge(true)
-                .setApplication(NavigationApplication.instance)
-                .setJSMainModuleName(NavigationApplication.instance.getJsEntryFileName())
-                .setBundleAssetName(NavigationApplication.instance.getBundleAssetName())
-                .setUseDeveloperSupport(NavigationApplication.instance.isDebug())
-                .setInitialLifecycleState(LifecycleState.BEFORE_RESUME);
+            for (ReactPackage reactPackage : additionalReactPackages) {
+                if (reactPackage instanceof MainReactPackage)
+                    throw new RuntimeException("Do not create a new MainReactPackage. This is created for you.");
+                if (reactPackage instanceof NavigationReactPackage)
+                    throw new RuntimeException("Do not create a new NavigationReactPackage. This is created for you.");
+            }
 
             list.addAll(additionalReactPackages);
         }