Fix loop shortcut state, move loop pos to score.cpp and add loop on selection
Fix loop shortcut state, move loop pos to score.cpp, add loop on selection and undo lower_bound causing crash
Fix loop shortcut state, move loop pos to score.cpp, add loop on selection and undo lower_bound causing crash
Fix loop shortcut state, support multiple scoreviews, add loop on selection
Merge pull request #451 from vgstef/loopPlayback

Loop playback update and improvements