ChaosLab: Add annotation to be used when adding new features to the lab.

This should be used when adding completely new features to ChameleonOS,
and not for simple things that expand upon a current feature.

Change-Id: I37d7250424967d41ecfb885120627f5397b2f804
Gesture Anywhere: Adjust position on orientation change.

Also added hiding home, recent and search from navbar when
showing the GestureAnywhere view.

Change-Id: I1dd13f38af265d6966441f2cd99b78ea9b3d4d90
Gesture anywhere: Collapse if expanded when screen turns off.

Change-Id: I85c749182dab9e478d7337b3556c362eaa7dd74d
Added sahlnaskh arabic font and give it higher precedence than DroidNaskh

sahlnaskh font is a fork of DroidNaskh font with some issues fixed.
Details of fixes are in https://github.com/khaledhosny/sahl-naskh

This should fix Jira issue: http://jira.omnirom.org/browse/OMNI-307

Change-Id: I9251eaf6c22288428f49916aa798be4ff3eaaead
Keyguard: Fix PIN layout on sw320dp-mdpi devices

Fix a long standing lockscreen layout problem that was introduced in 4.2

Before: http://i.imgur.com/9sVKHRR.png
After: http://i.imgur.com/DLY4DRu.png

Change-Id: Ia3cdc0d10217a0a2504a7287f480d9f036e66eee