Optimized all png's.

Change-Id: I6b9a374b08a567e92c024df8d16844e7859f8cf7
to: optipng -nc -nb -o7
wifi.supplicant_scan_interval: 15 -> 30

Change-Id: I93a160e02367ec936980751846338e3fe281fcf6
Stweaks Support

Change-Id: I5ea72126ba84a2e2346fcbeb55ece5117ea1fdc7
4.4 bringup

Change-Id: Ic92e14fe4d76e04c09d98a218d5b8d1c94282671
Fix recovery compatible issues

Change-Id: I8ed60c8bc765692e6c4f38b66248ddcf6dd8db91
Fix sdcard mounting

Change-Id: I340c66636a5b85222b0e5bed7e476b5c4ba07625
Fix build error

Since directory system/bluetooth does not exists

Change-Id: I05c60a21bf5c5d9efc1e5804133083676e2cd103
Remove duplicate selinux policy entry

Change-Id: I89a44c948c19e35afee9a3c8e3ddc209df230a1e
Fix graphical issues

Change-Id: Iafeb4349fa504b5a5f7d72afd3274581de5b2ddc
wifi: update {wpa,p2p}_supplicant services init

Change-Id: I9386392b90c1e9ad792a1a1f4145bd01f77cdd13