The OpenSpace_Helper process was staying when terminating OpenSpace. This fixes that by automatically closing the helper process when the parent process dies for whatever reasons
* Cleanup
* CMake cleanups
* Update current year
* Update copyright header
* Use script to return list of all modules
* Update credits, license and ghoul
Web GUI from Klas Eskilson (three new modules: webgui, webbrowser and cefwebgui)
Parallel connection refactorization
Wormhole server added to the main repository
Transfer function editor work from Cristoffer Särevall
Update ghoul