Stop memory management on blanking overlay graphics

This prevents a crash in TWRP when trying to blank
the screen on devices that are using overlay graphics.

Change-Id: I155868616ffa1b211e97be97e4abe8b03dad7ca0
Allow using variables and addition/subtraction in variables

Change-Id: I1acba95302e414e1a471d27474508a7c48df0328
update 1440x2560 keyboard mapping

Change-Id: I9777e92ca26967d41625e726383ae6aa5406161d
Add possibility to use images as background or handle of slidevalue

* Add tag <resource background="x" handle="y" handlehover="z" />
  to the slidervalue object.
* All images are optional, e.g. you can use just handle or just
  background image or no images whatsoever

Change-Id: Ie0fee92965c6e883c4e532732756008dcc9e385e
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
remove stray test file
exfatfsck: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=c91c3e4c1e542e4a40bcad47ac747f62fb7312f9, not stripped

Change-Id: I32472d460a8f03776e1d215810c537b029789220
removing logging test file
updating gitignores to keep file from coming back
adding gedit backups to gitignores

Change-Id: I36d55983b34d47763cb56abf784381c06d951302
Set font based on resolution if not set already

Change-Id: I6efaeb1c508c06513ac9ace7aa72a2eefa0cb1bb
Merge branch 'android-4.4' of github.com:omnirom/android_bootable_recovery into kitkat