Add support for split display

Configure LEFT and RIGHT mixer separately
Update split display
Fix permissions on the folders screenshots are saved to
Merge branch 'master' of github.com:Tasssadar/multirom
Build kexec-tools instead of using prebuilt binary
Add new icons

Android L, Alternative for AOSPA, ViperOne (Sense)
update
Add miui icon
Build adbd instead of using prebuilt binary
Add info about submodules to the README.md
Merge branch 'master' of github.com:Tasssadar/multirom
Implement "autoboot if no key pressed"
Merge branch 'autoboot'
Fix signed/unsigned warning in input.c
Merge pull request #29 from dzej1/master

Add new icons
Merge pull request #22 from KINGbabasula/master

Add support for split display
Fixup coding style in framebuffer_qcom_overlay.c
Kang qcomm overlay vsync and double-buffering from CM

* Largely inspired by
  https://github.com/CyanogenMod/android_bootable_recovery-cm/commit/3da7aae3125dbc682f0f3b3c468ca402e53ca5b1
* Fixes tearing on flo
Fix some typos in vsync code
Make qcom overlay vsync optional

* It is utterly broken on flo