Option to disable locking

[anbroid]

Please add a setting to disable locking the screen, or allow the sleep timers to go to 0 (meaning turning off the screen will be left to android). Rationale: android allows automatic locking as much as after 30 minutes after using the phone, which is independent of the display timeout (typically set to 30 seconds). However the current behavior of AcDisplay locks our phones even though though we don't want to lock them unless 30 minutes have passed. So such a setting will allow android to turn off the screen (which does not lock the phone).