Add Google Analytics support

PS2: add branch build prop
PS3: add device prop since in many cases the ro.product.device property differs
     from the AOKP codename

Change-Id: Ica9f4034bf8363fb89bc40d3beb134c5aa17803d
Signed-off-by: Gergely Szell (sethyx) <szell@hu.ibm.com>

Conflicts:
	configs/common_versions.mk
	prebuilt/Android.mk

Conflicts:
	configs/common_versions.mk
respect $OUT_DIR_COMMON_BASE with squisher

If $OUT_DIR_COMMON_BASE is set, signapk.jar was
being called directly from $ANDROID_BUILD_TOP/out
and caused the build to fail.

Change-Id: I9f8bfb22140866bd2c91a675efa954433431220c
Signed-off-by: Roman Birg <romanbirg@gmail.com>