Memory leak in IInputMethodSessionWrapper executeMessage

In some cases the executeMessage is called with
mInputMethodSession == null. For the messages

DO_UPDATE_SELECTION, DO_APP_PRIVATE_COMMAND

memory is leaked. This commit recycles the args freeing
the allocated memory.
Fix for rare INSTALL_FAILED_INSUFFICIENT_STORAGE bug

This fixes a bug that occurs when one application
update fails to remove the old application package
causing any following update attempt to fail falsely
reporting insufficient storage.

Change-Id: Ib94110bcc82ff092ac630e929fde81136425159e
PreferenceFragment : Set title if specified

Set the title of the preference activity if specified by the
preference screen.

Example of where it is broken :

Settings -> Accessibility
Title says "Accessibility", but preferencescreen's android:title attribute
specified "Accessibility settings"

Change-Id: Icc89cf6bc37e3f6fc98c6bc05a0ef47185daa52c
HALO: update ic_notify_halo drawables

credit goes to Arz (PA)