Edit All The Strings!

Just reworded some of the stuff in ROM Control with
three things kept in mind: consistency, the guidelines
defined for Settings in Android Design, and...grammar... :)

Huge thanks to Kit (Jubakuba) for helping me get started
and pushing me forward :)

Patch-set 2: Moarr edits

Patch-set 3: Quick fix

Patch-set 4: Title-casing fixed, one more instance of nav bar --> NavBar,
	     some wording fixes
Patch-set 5: Moarr consistency

Change-Id: Idae1e8f84c54102eb0add706a64ecf2448689e46

Conflicts:
	res/values/strings.xml