Clean up dist files.

Change-Id: Icc8efaa046b4ec51ceab9178e4d12f7369ffac74
Adding a gradle build file.

Change-Id: Ie6a8310b5c6d18db756f944e2dd981836a434719
Merge tag 'tags/android-4.4_r1' into kitkat-staging

Android 4.4 Release 1.0