Update Travis config for Android builds...
Update Travis config for Android builds...

Taken, and stripped down from, this:

https://github.com/embarkmobile/android-maven-example/blob/master/.travis.yml

...I've attempted to remove unnecessary stuff.

Full Travis support for Android is apparently being worked on:

https://github.com/travis-ci/travis-worker/issues/56
rtyley/roboguice-sherlock