Added MenuButton class
Menu uses MenuButton
Redesigned join menu

User is able to enter server IP
Merge with GUI
Added settingsButton and fixed play(ground)button
Added hover effect to menu buttons
Merge branch 'devGUI' of https://github.com/totteCh/B17 into devGUI

Conflicts:
	src/chalmers/TDA367/B17/states/Menu.java
Updated menu background
Updated the host menu

Added a back button and fixed the buttons
Updated the join menu

Added a back button and moved some elements
Fixed a bug in how the client connects

The bug caused the client to clear its packetlist after receiving the
response to its join request, therefore not reacting to properly and
getting stuck in a limbo-esque connection state
Moved host menus back button a bit
Added settings menu and player name saving
Removed unintended method
Code cleanup
New players with already used names are renamed
Added a slider class
Added a slider for the volume
Added a slider for scorelimit
What the hell?