QS: Make it possible to show smaller tiles (1/2)

* Remove text and show more tiles on one row

ps18: set icon margin based on density of device
ps19: adjust the margin
ps20: implement show text under the tiles
ps21: fix typo
ps22: underp

Change-Id: Ie247aba1ae5fbdb8f5298e30fb2f04a985e73532
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_frameworks_base into temp