Single Screen

The game is now having only minor issues and is limited to a single
screen. Next implementation will be to make the background move like it
used to. 
A lot of the readability has been improved with case-switch
statements. Code has been structurized to look better.
Entity Master

Revised the render method inside of gamescreen, found duplicate methods
-.- Now I've moved stuff around to get a good hang of how the code
looks so now we have much neater code. Added a few pieces of Javadoc to
some classes. The big change is really the Entitymaster class. Now all
the runners and throwers are created inside the entitymaster instead of
gamescreen.
Offset working

Finally the offset is working correctly. The function that was checking
wheter the player was at the side of the screen used offset in it's
calculations when it should only be working with "on-screen position"
"X marks the spot"
Because fuck you!

Finally got the offset fixed, will start implementing skin choice ASAP
Choose your own style!

Added the options back again, fixed the bug with all windows closing,
added the "välj din egen stil" to options. Do note: they do nothing at
the moment