Clean up dist files.

Change-Id: I2eb26d091ed606745b1aaa18136872d730096055
Adding a gradle build file.

Change-Id: I0c829b80f04d20d5f53d29748fa902c74586e365
Merge tag 'tags/android-4.4_r1' into kitkat-staging

Android 4.4 Release 1.0