limit use of static variables in functions
Support recovery lock:

- requierd passkey of 6 chars
- any hardware key can be used, include power and back keys
- max of 3 trials allowed
- setup lock key from PhilZ Settings menu
- start up scripts are allowed
comply to stock CWM sources
6.47.3 / libtouch_gui 1.26
Galaxy S3 D2 variants: enable f2fs support
fix adb was disabled when no recovery lock passkey was setup
6.47.4 / libtouch_gui 1.27
recovery lock: support capacitive and virtual keys
Work with vanir
6.47.6 / libtouch_gui 1.28
One Mini (m4): support f2fs and exfat in kernel
preserve background icon user settings after sideload, install zip and wipe actions
write proper fstab when using f2fs/ext4 conversion
6.47.7 / libtouch_gui 1.29
no bullshit
support Oppo Find7