It now toggles between show/hide for each tap on the home button.
Added new bitmap generation for lighting and halo effect while loading.
Uses new CarouselViewHelper class to manage textures and threading.
Uses a "real view" to render detail text.
Activities can now overload onCreateDescription() to show a
description in Carousel.
Improved startup and resume speed by posting single event to
refresh the activity list.
Change-Id: Id5552da75b9d022d24f599d11358ddababc97006
c4cf1305d6
