Another libtar hardlink workaround
Fix capturing exit status to properly display libtar results

Error conditions were always showing successful in the TWRP GUI
making it much more difficult to determine if a backup or restore
was actually successful.
More file selector fixes

Fix a freeze that occurs when you move or delete a file in the
file manager
Make file sort buttons work again

Change-Id: Ifcb68edf3c29c475946d538748729485d0840842
Merge "Another libtar hardlink workaround" into twrp2.4
Merge "Fix capturing exit status to properly display libtar results" into twrp2.4
use md5.c for computation of md5sums
create a framework for computing digests and reading digests in TWRP
add space for backwards compatibility with bb md5sum
Change-Id: Ia18e3f430eed5eba22e5052d39b9b8d88ecd4536
Update exfat to newest commits
Change-Id: If15df21a556d39e6325ca8338345b698b9d8759d
Remove mutex from file seselector

mutex would, in some rare cases fail to lock and cause a freeze
of the GUI.

Also restored some code that was removed before and should not
have been removed to fix a bug with folder selection where you
select the same file or folder twice (e.g. select a backup on the
restore page, press back, then select that backup again.)
Remove unused fonts from 320x480
Merge "Remove mutex from file seselector" into twrp2.4
Merge "Remove unused fonts from 320x480" into twrp2.4
add no fb blanking
Change-Id: Iaf771257d8f904807ca6f6c1a6c3d7993abadb85
Merge "add no fb blanking Change-Id: Iaf771257d8f904807ca6f6c1a6c3d7993abadb85" into twrp2.4
2.4.4.0
Merge branch 'twrp2.4' of git://github.com/TeamWin/Team-Win-Recovery-Project into nexus7

Conflicts:
	gui/fileselector.cpp