[2/2] settings: add CPU info overlay

this shows
CPU temp (if available)
for every core governor + online + freq

Change-Id: I43b06d7feca592d598d172f53ce2a39af84b9a8f
Add gesture based lockscreen security. [2/2]

PS2:
Tidy things up a bit.

Change-Id: I83e3ab643e19b2a2d9c8416f4925bbab05bbc896

Conflicts:

	src/com/android/settings/SecuritySettings.java