Framework: Option to force keyboard to show enter key (1/2)

Summary: Not everyone likes emoticons :-(. 2/2 is in Settings

Test Plan: Needs a bit of work still.

Reviewers: Mustaavalkosta, randall.rushing, michyprima, rlasalle15, synergy

Differential Revision: http://review.codefirex.com/D270

Change-Id: I988d74195d1b46b9bf87fd6a13fda1e31194b127
re-implement statusbar brightness slider

Summary: TODO: allow it to be disabled by adding a System.Setting?

Test Plan: Add setting, Setting framework added

Reviewers: randall.rushing, Mustaavalkosta, michyprima, Roach

Differential Revision: http://review.codefirex.com/D278

Change-Id: Ia65d1385b7e9edf625f78e8f03a93e518864a737