Fixes several files incorrectly stated a different license from the actual project, as well as the copyright headers included in all files. This change has no effect on the licensing terms, it should clear up a bit of confusion by contributors. Plus the files get a bit smaller, and we have less duplicated information across the entire project.
Overall the project is GPLv2 if not built with Qt, and GPLv3 if it is built with Qt. There are no parts licensed under a different license, all have been adapted from other compatible licenses into GPLv2 or GPLv3.
As contributors and translators always increase in number and never decrease, it was getting difficult to thank everyone properly with every update. So instead of manually writing each entry we should take advantage of the power of automation and use APIs to gather this information properly. As long as the user is not actively hiding their profile, they will be thanked properly.
This also includes a potential fix for the problem with multi-lingual text in the About StreamFX window.
This reduces the total amount of links Supporters can submit to just one instead of two. Additionally by removing the buttons and making the entry itself clickable, the UI can show more entries at once and allow users to easily make the connection between the entry and the link it opens when clicked.
Implements support for various new UI features that weren't possible up until now, such as an 'About StreamFX' window with a thank you to everyone that supported the project up until now.
