Merge branch 'v2.0' of https://github.com/wix/react-native-navigation into v2.0

android/app/src/main/java/com/reactnativenavigation/params/parsers/ColorParser.java

 package com.reactnativenavigation.params.parsers;
 
+import android.graphics.Color;
+import android.support.annotation.ColorInt;
+
+//TODO move to JS
 public class ColorParser {
+    @ColorInt
+    public static int parse(String str) {
+        return Color.parseColor(str);
+    }
 }

android/app/src/main/java/com/reactnativenavigation/params/parsers/ScreenStyleParamsParser.java

 public class ScreenStyleParamsParser {
     public static ScreenStyleParams parse(Bundle params) {
         ScreenStyleParams result = new ScreenStyleParams();
-        result.statusBarColor = params.getInt("statusBarColor");
-        result.topBarColor = params.getInt("topBarColor");
-        result.navigationBarColor = params.getInt("navigationBarColor");
+        result.statusBarColor = ColorParser.parse(params.getString("statusBarColor"));
+        result.topBarColor = ColorParser.parse(params.getString("topBarColor"));
+        result.navigationBarColor = ColorParser.parse(params.getString("navigationBarColor"));
         result.titleBarHidden = params.getBoolean("titleBarHidden");
         result.backButtonHidden = params.getBoolean("backButtonHidden");
         result.topTabsHidden = params.getBoolean("topTabsHidden");

android/app/src/main/java/com/reactnativenavigation/params/parsers/TitleBarButtonParamsParser.java

         TitleBarButtonParams result = new TitleBarButtonParams();
         result.label = bundle.getString("label");
         result.icon = ImageLoader.loadImage(bundle.getString("icon"));
-        result.color = bundle.getInt("color");
+        result.color = ColorParser.parse(bundle.getString("color"));
         result.showAsAction = parseShowAsAction(bundle.getString("showAsAction"));
         result.enabled = bundle.getBoolean("enabled");
         return result;