Client only

Refactorings

- Package structure changed
- Variable renaming
- Use -s / -server to connect to a custom server
- remove useless code

Client only

# Bugfixes

- Context Menu in Table now works like it should
- Version Changer notifies if GTA can't be found
- Server List now loads in a seperate Thread
- Changelog Dialog at first startup after update
- Minor API changes

Client only

Fixed Bugs:

• Saving of favourites now works
• Version filter can be cleared
• There is an error, for when the connection couldn't be established
• Filtering works with and wihtout regex now
• Updates will now be retrieved from latest github release