Use shared defconfig and variant defconfig for command line change

Change-Id: Ic30099ff4ab7b69905947cef42124f979bc78ee0
Add extract-files

Change-Id: Ieb3e7a61f74a52f5d264f0b2fff151cc2f421532
Merge branch 'cm-10.1' of github.com:CyanogenMod/android_device_motorola_targa into jb2