Peek wake timeout && configurable timeout (1/2)
- Originaly taken from AICP - Thath's why i'm keeping original autorship
- Allow user to set how long peek notification will hold screen on
- Minor changes by me @cristianomatos to match crDroid sources

Diff from original commit:
* Variable declared globaly and moved from inside the private void scheduleTasks() method
* Made multi user

Original commit: AICP/frameworks_base@90b47fc