Add downloader of proprietary data
Add user to buildtype
Add makefiles of device/aosp and vendor/aosp
Change MANUFACTURER from ASUS to asus
Add the definition of AOSP Full build
Define PRODUCT_BUILD_PROP_OVERRIDES for L Preview
Set WITH_DEXPREOPT to false
Update media_codecs.xml
Changed to not use the device/asus/flo/audio_effects.conf at full build
Update Android 5.0 (LRX21P)
Change to the build system of jcrom
Add makefiles of jcrom