* Added non-commercial use option to enter license window
* Show enter license window on first start and force license selection
* Added ApplicationSettings migration that removed private/academic license and switches user to non-commercial mode
* Added commandline option to choose non-commercial use and provide better hints to license selection
* Removed trial mode
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* added SubWindow flag to QtWindow to either use window decorations or show window within main window
* fixes black borders in some Linux window managers
bug id = 376
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* hide build file content
* use small buttons in all windows
* new design for start screen
* fixed design for enter license ui
* added spacing to summary
* brighter icons in wizzard
* added template icon for graph
* smoothing for graph icons
* switched error icon to dot
* fixed error message tooltip immediatly disappearing
* menu item for opening documentation
This change integrates the license key ui into the application and makes it necessary for the user to enter a correct
key. The check for a correct key is done on startup and whenever a project is loaded. The check for the key also
includes a check whether the location of the application has changed.