* Register custom fonts once
The QHelpers functions registered the fonts on every call, which is not
necessary.
- added anonymous namespace for internal linkage
- added helper function for font registration
* Move helper functions from class to namespace
Fixes a possible memleak, because up until now the QHelpers object was
allocated with new without a parent QObject or following delete.
* Removed unused functions
* Set Organization- and ApplicationName QApp wide
- Setting this here removes the redundancy to write the names every time a QSettings object is needed
* removed redundant QSettings parameter
- no static WebServerThreads anymore. fixes a crash on load/new
- manage own QRCore
- don't quit the Application but close the window in actionNew
- use startDetached in actionLoad, so the new instance won't get killed
