Add undelegateEvents to all views.

Signed-off-by: Patricio Reboratti <darthpolly@gmail.com>
POV: optimize draw_now_indicator and stop_animation at view unload.

Signed-off-by: Patricio Reboratti <darthpolly@gmail.com>
POV: add clear_now_indicator.

Signed-off-by: Patricio Reboratti <darthpolly@gmail.com>
EditView: fix funny binded event when clicking newly created Playlist.

Signed-off-by: Patricio Reboratti <darthpolly@gmail.com>