New Theme Engine [4/6]

Adds aapt for on device compiling of theme assets

Change-Id: I2f9f4b3e27ddf32b339694f9c6d3b75a12b700d9
Merge remote-tracking branch 'remotes/github/cm-12.0' into cm-12.0-ads
build: Parse TARGET_COPY_FILES_OVERRIDES late in the setup

Change-Id: Ie3e4a168ff224e3b65e4627c0757e8813a02167f
Merge remote-tracking branch 'remotes/github/cm-12.0' into cm-12.0-ads