Merge branch 'fixes-for-1.3' into release-1.3.x
Fixed bug in OS X of save dialog poping in and out.
Fixed issue #202
Implemented wish #231
Removed precision aleas, hopefully fix display bug on Windows.
Fixed issue #230
Added disconnection animation for serial ports.
Fixed missing recompilation in VPL when an event-action pair was added.
Bumped version number.
Updated translations.
Fixed crash when saving an empty VPL scene.
Implemented issue #238
Fixed issue #240
Implemented issue 241.
Merge branch 'release-1.3.x'