Removed dependency on mScrollX which is a hidden field.
Added some required static libraries.
TODO: When BackupManager is ready, make sure we don't use any private
APIs from there.
This is an experiment to see if flash contention is causing occasional
keyboard hicups that people complain about.
A side effect is that the APK (with 5 languages) reduces in size by 25%.
The build system does not honor user tags on apps,
and setting it is misleading.
This removes the confusion by making the makefiles
behave like they read.
Change-Id: Ia90c376d627c6c9faeccf040695b88bb32779f82