Merge pull request #3358 from matrix-org/bwindels/cider-paste-images

New composer: support pasting files

src/components/views/rooms/BasicMessageComposer.js

@@ -332,6 +332,10 @@ export default class BasicMessageEditor extends React.Component {
         }
     }
 
+    getEditableRootNode() {
+        return this._editorRef;
+    }
+
     isModified() {
         return this._modifiedFlag;
     }