working android gradle plugin build.
ignore android studio files.
catkinized, with local maven aar installs.
kazuto's fixes - inheritable ros activity and view handling so that camera view and visualization views can swap successfully.
use publishToMavenLocal task as that syncs with maven-publish later.
check if we are finishing already (this usually gets triggered from inside onDestroy() and avoid duplicating the finish call.
avoid confusion with qrcode and zeroconf scans.
android gradle plugin 0.5.0
Merge pull request #163 from rosjava/gradle_catkinization

Gradle Android Plugin & Catkinization