Battery statusbar indicator controls (1 of 2)

Summary:
Show/hide icon and text indicators
text inticator show/hide %

Change-Id: Id80b7de98180660f08b94935c9cf549fecbef22d

Test Plan: should be solid, look for hidden derp

Reviewers: synergy

Reviewed By: synergy

CC: anders3408

Differential Revision: http://review.codefirex.com/D432