ModLockscreen: run blocking activity launch call in the background
Fixes issues with launching activities from "slide before unlock" ring
GB Actions: defined the list of unsafe actions
When action is unsafe it is not allowed to ber run while lockscreen is
locked and secured
Conflicts:
	src/com/ceco/kitkat/gravitybox/shortcuts/ShortcutActivity.java
AppLauncher: handle safe/unsafe actions internally
- allows app launcher on secured lock screen
- allows launching only safe actions when keyguard is secured
- requests keyguard dismiss prior to launching activity - prompts user
to unlock before running activity
GB Actions: added shortcut for toggling airplane mode
Updated French translation [KK]

GB Actions: added shortcut for toggling airplane mode
Merge pull request #802 from ch-vox/patch-19

Updated French translation [KK]
Updated translation for Traditional Chinese (zh-rTW)