Doc change: Add core quality and tablet quality docs and spotlight.

Change-Id: Ia88e66818200fdc20417c0fe20672a5758284028

Conflicts:

	docs/html/distribute/googleplay/quality/core.jd
	docs/html/distribute/googleplay/quality/index.jd
	docs/html/distribute/googleplay/quality/tablet.jd
13 files changed