This has only been tested on my device running ARHD 1.3.0 so let me know how it goes.
Make sure you take a NANDROID backup before doing anything!
I am not responsible for any issues you may encounter while or, from installing this apk
TAKE A NANDROID BACKUP
1) Download Launcher2.apk
2) Open up CMD/Terminal and use ADB to do the following commands
3) adb pull /system/app/Launcher2.apk C:\nexusbackup\
4) adb remount
5) adb shell stop
6) adb push <Launcher2.apk location> /system/app
7) adb shell start
All comments and feedback welcome