Android support library v4 added.

Look at https://leap.se/code/issues/5062#note-3:
I'm going to remove android-support-v4.jar from .gitignore based on https://developer.android.com/tools/support-library/index.html#overview and http://www.in-nomine.org/2012/02/26/adding-android-support-v4-to-your-android-application-in-intellij-idea/
Merge branch 'bug/no-support-library-in-tests' into develop

I merge myself because I need to show how I'm doing tests before people can start reviewing them.