Add downloader of proprietary data
Add user to buildtype
Add makefiles of device/aosp and vendor/aosp
Change PRODUCT_BRAND and PRODUCT_MODEL for products
Define PRODUCT_BUILD_PROP_OVERRIDES of Factory Image(Android4.4)
Add the definition of AOSP build
Set WITH_DEXPREOPT to false
Changed to not use the device/lge/mako/audio_effects.conf at full build
Add com.android.nfc_extras
Update Android 5.0 (LRX21T)
Update BUILD_FINGERPRINT and PRIVATE_BUILD_DESC
Change to the build system of jcrom
Add makefiles of jcrom