Manually mount /rom in store-mac-addr.sh if needed

Ensure that /rom is mounted before trying to read from it. This is an ugly
hack, but gets the job done and avoids having the system to boot without
Wi-Fi in certain circumstances.
Add missing e2fsck to PRODUCT_PACKAGES

The system will try to scan file systems for errors using e2fsck, but it
will fail due to a missing executable. Adding this solves the issue.
Add a number of config options to framework overlay
Do not inherit from AOSP's product/full_base.mk

To make the ROM leaner, do not inherit from product/full_base.mk, but copy
the relevant parts inline sans the packages that are to left out of the
build.
Add the T-Mobile theme manager from CM
Add CM extras: LockClock & BluetoothExt
Add encore device UI for new 4.4 recovery
Use internal storage as fake SD card