Revert "Switched to FragmentStatePagerAdapter to stop crash when rotating. (Seems to be bug in supportlibraries shipped with ActionbarSherlock since it didn't happen before switching)"

This reverts commit a18347529882f27f9b7db410b79180a2db0ece6f.
Revert "Changed to fully use ActionBarSherlock including new theme extending sherlock light theme. Starts successfully in GB now."

Reverting since there are problems in Android Studio beta layout designer using themes extended from libraries

This reverts commit 1beed77fdbc67f14ca3520b16b1efe0eff2170b9.