Requires string splitting to return empty string. Fixes #534
Merge #535 r=@tcr: Requires string splitting to return empty string. Fixes #534

See testcase for example.
Adds test for shadowed this variables. Closes #361.
Merge #536 r=@tcr: Adds test for shadowed this variables. Closes #361.
Bumps colony-compiler version.
Merge #545 r=@kevinmehall: Bumps colony-compiler version.
Adds test for the correct location of colony-compiler.