Alternate default app grid (2/2)

Can't remember if this has ever been a part of Slim's philosophy,
but I know I always cherry-pick it in each time I build Slim for
myself...so I figured I'd at least see what you guys thought.
Functionally I haven't ever had any problems with it (been running
it over the last few of my own Slim builds).

Conflicts:
	res/values/slim_strings.xml

Change-Id: I278cba1416bf593d845ffb6654d2b447ac99ac16