Give entry selector context menu actions and store

The store helps to access global state modifications using redux.
The context menu actions will be used in the future when right clicking
notes.

app/containers/App.jsx

@@ -93,6 +93,7 @@ class App extends React.Component {
                     className="left inline fill-height"
                     navigation={navigation}
                     {...navigationActions}
+                    {...contextMenuActions}
                 />
 
             </div>
@@ -100,6 +101,10 @@ class App extends React.Component {
     }
 }
 
+App.contextTypes = {
+    store: React.PropTypes.object
+}
+
 App.propTypes = {
     contextMenu: React.PropTypes.object.isRequired,
     contextMenuActions: React.PropTypes.object.isRequired,