Fix Wikipedia app license
Replaced GPLv2 with Apache2 (source: https://github.com/wikimedia/apps-android-wikipedia/blob/master/COPYING).
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Replaced GPLv2 with Apache2 (source: https://github.com/wikimedia/apps-android-wikipedia/blob/master/COPYING).