Add Kotlin Android Extensions Gradle plugin. (#1411)
Add Kotlin Android Extensions Gradle plugin. (#1411)

liuche/focus-android,liuche/focus-android,liuche/focus-android,mastizada/focus-android,ekager/focus-android,mozilla-mobile/focus-android,mastizada/focus-android,jonalmeida/focus-android,mozilla-mobile/focus-android,pocmo/focus-android,Benestar/focus-android,liuche/focus-android,mozilla-mobile/focus-android,Benestar/focus-android,ekager/focus-android,pocmo/focus-android,ekager/focus-android,mastizada/focus-android,pocmo/focus-android,jonalmeida/focus-android,Benestar/focus-android,layely/focus-android,pocmo/focus-android,ekager/focus-android,Benestar/focus-android,layely/focus-android,jonalmeida/focus-android,mozilla-mobile/focus-android,ekager/focus-android,mozilla-mobile/focus-android,liuche/focus-android,layely/focus-android,Benestar/focus-android,pocmo/focus-android,mastizada/focus-android,jonalmeida/focus-android,pocmo/focus-android,layely/focus-android,ekager/focus-android,jonalmeida/focus-android,jonalmeida/focus-android,mastizada/focus-android,layely/focus-android,mozilla-mobile/focus-android,liuche/focus-android