PEEK: configurable pickup timeout (2/2)

    - Allow the user to set different pickup timeout when a notification comes up through PEEK.

Change-Id: If2978e4c12a46a9dc741579775007f026184395d
SlimRecent: Make it optional [2/2]

Change-Id: If2244326ad20ec9e925adb866bd437145292f751
PS1: restart SystemUI espcially for what all that it is doing \: