Tabris UI should allow to distinguish between global and page actions

[mpost]

The android implementation uses the navigation drawer to switch between top level pages. When the drawer is opened, the ActionBar title switches to the app title and app wide actions should be shown. In the current tabris ui implementation there is no way to distinguish between page local and global actions as they are completely controlled by the server.

An action should eg. have its page as the parent or have a flag to determine if they are global or local.

The attached screenshot shows a page action displaying while the navigation drawer is open.