Fix for Queue / Stack issue

src/RichTextEditor.js

 
   insertImage(url, alt) {
     this._sendAction(actions.insertImage, {url, alt});
+    this.prepareInsert(); //This must be called BEFORE insertImage. But WebViewBridge uses a stack :/
   }
 
   setSubscript() {

src/RichTextToolbar.js

     onPressAddLink: PropTypes.func,
     onPressAddImage: PropTypes.func,
     selectedButtonStyle: PropTypes.object,
-    unselectedButtonStyle: PropTypes.object
+    unselectedButtonStyle: PropTypes.object,
+    renderAction: PropTypes.func
   };
 
   constructor(props) {
     return this.props.unselectedButtonStyle ? this.props.unselectedButtonStyle : styles.defaultUnselectedButton;
   }
 
-  _renderAction(action, selected) {
+  _defaultRenderAction(action, selected) {
     return (
       <TouchableOpacity
           key={action}
     );
   }
 
+  _renderAction(action, selected) {
+    return this.props.renderAction ?
+        this.props.renderAction(action, selected) :
+        this._defaultRenderAction(action, selected);
+  }
+
   render() {
     return (
       <View