Migrate to coffeescript

To compile source files you need to exec the following code in the project folder:

coffee -c -o static/src/ client/
Remove unneccessary .gitignore file
Add config for client
Update spec to using single quotes instead of double ones. Also update some test names
Add tests for badJSON and paramMissed
Merge branch 'master' of github.com:Duznet/the-game
Merge branch 'testing_platform'