R31 fully live, now with graphics options and bahhh

Technically it is r31.5 -- everything from r31 is now live, along with a few additional changes, such as graphics options in settings, pause screen having control setup, and some bahhhh. Full update log:

• The prototype level is now the Zoo level.

• Small level updates, details here: https://www.youtube.com/watch?v=TyJv0LyxvWo

• Updates on Buckshot's, 招き猫 and Gil's animation.

• Fireballs can now be thrown when walking up on slopes.

• Fireballs are now moving at the same speed no matter which direction you throw them.

• Fireballs now have a slightly lower collision box.

• DoubleJumping after a superboost doesn't make you lose your speed anymore.

• Added a 'wrong way' indicator.

• Added a 'no item' game option.

• Network rerouting. The game now sends messages through other players if that turns out to be faster (or the only way to reach them). This should in turn fix a bunch of in-game issues.

• Fix: the jittery motion during swinging for some players.

• Fix: laser sliding.

• There are graphics options in the options menu now (note: resolution, vsync or windowed settings the steam game launch options overrule the graphics options in the options menu. This may be a good time to remove the graphics options from the steam game launch options.)

• The last item on the workshop levels list can now be selected.

• AI volumes are now triggerable.

• Many updates on the level editor.

• Many smaller updates and fixes.

• Up to 1 goat per match

• Controls can now be changed during the game.

• Fixed the swing knockback glitch.

• Fixed checkpoints in some levels.