Trebuchet: Draw the dynamic grid image dynamically

This commits makes it possible to draw the image which previews
the selected grid dynamically.

Change-Id: I7c029f06110afdf1fe62145a079bba76166bb690
After getting an update to rebind items after getting updates for protected components, strip empty screens

Change-Id: Ic269e7c8c233b34c8cdf638f2c794bd0e5bf668a
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0