Fix time label mouse-over under OSX


git-svn-id: http://cantata.googlecode.com/svn/trunk@5374 b1e49159-3266-923f-9c3e-04f16369770a
Fix combo-box text changed signal for Qt5 builds.


git-svn-id: http://cantata.googlecode.com/svn/trunk@5375 b1e49159-3266-923f-9c3e-04f16369770a
Put spacer item in cover widget class - so that when widget is hidden, spacing is removed.


git-svn-id: http://cantata.googlecode.com/svn/trunk@5376 b1e49159-3266-923f-9c3e-04f16369770a
Enable script to function under OSX.
TODO: How to send message back to Cantata app under OSX??


git-svn-id: http://cantata.googlecode.com/svn/trunk@5377 b1e49159-3266-923f-9c3e-04f16369770a
Better retina support.


git-svn-id: http://cantata.googlecode.com/svn/trunk@5378 b1e49159-3266-923f-9c3e-04f16369770a