Track our Email and Contacts apps

Added Theme Engine support

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Merge branch 'kitkat' into XPerience

Conflicts:
	default.xml

Change-Id: I2a3bb1074b195af9560c425b92b26bbee16d94a6
Merge https://github.com/XPerience-AOSP/manifest into HEAD