i777: keyfiles and extract cleanup

Change-Id: Ifcb60798294105eb9cbdc5977c81752d3a8191cd
i777 extract-files.sh: remove camera.exynos4.so

Change-Id: Ie55d6fdef6f82c69ff4a7a5125a5e7a0b38c443a
i777: add ext4 as second filesystem for sdcard for recovery

Change-Id: I4523180c0b5927e6eb56f0056697751e19b6e869
i777: Remove keyguard security height overlay

before: http://img255.imageshack.us/img255/2807/screenshot2013031120065.png
after: http://img547.imageshack.us/img547/6741/screenshot2013031323274.png

Change-Id: Id037b80254fb8f3c9ad359f9f19b971c65870b48
Merge remote-tracking branch 'CM/cm-10.1' into jellybean