Removed unneccessary aliases in 'gl_back_end' and 'game'
Updated to latest version of Rust-Empty
Upgraded to lastest rust: StrBuf to String
Merge pull request #185 from leonkunert/master

Removed unneccessary aliases in 'gl_back_end' and 'game'
Merge pull request #187 from Coeuvre/master

Upgraded to latest rust: StrBuf to String
Merge pull request #186 from leonkunert/update_makefile

Update makefile
Fix gameloop logic