Merge pull request #13 from davedissian/master

Finally got it working on OS X.
Tried to fix CMake for CLion
Fixed event sending
Added network components

Fixed bug causing crash upon second connect attempt
Added *lots* of networking infrastructure
More work on networking pipeline

Will need to fully document how the networking works, but this is a big
step. Just needs debugging on multiple machines to find out which step
is causing it to break.
Small bugfixes, working source.
Events are successfully sent across the network
Started working on synchronising physics
Added Clion to gitignore and removed temp files
Update README.md
Added license
Update README.md
Ignores Visual Studio Temp files
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.gitignore