shorter glow animation
try to fix lock sound
ZygoteInit: increase GC threshold amount when preloading to postpone GC

todo: instead of hardcoding this number.. make it dependent on the amount
set for heapgrowthlimit in the build.prop. for now we'll just turn it "off".

Change-Id: I7a6e195b82ebe2f4bd5bbb506e19200d452fa3e5
Dual panel for settings (1/2)

Change-Id: Idb4870e764404b0f4d070ebcd36c7e519388abfc
DocumentsUI: Add a standalone File Manager

This commit adds a standalone mode to the DocumentsUI, to let
it act as a file manager/explorer.
You can browse your storage contents, open files, and delete them,
as well as do everything that the DocumentsUI can do (ie. sort
by name/size/type, list and grid view, recents, search, ...).

This gives us a consistent file browsing UX accross all apps
that uses the new documents API.

Change-Id: If73a3c100f010bdb766c843976d4fd3573ea805c