Change Log: ----------
Fixes:
- Fixed an issue where it was possible to have changes to a spinbox not update in a render
- Fixed issue where saving images from vfb wouldn't overwrite existing files
- Fixed some problems related to the new offline activation stuff.
- Fixed problem with upgrading binary visopt/vismat to xml where files were not marked properly
- Fixed DR problems on OSX
Changes:
- We grey out the SettingsCameraDof "Aperture" setting if the physical camera is in use ( you need to use the Physical Camera's "F-number" parameter to set aperture in this case ).