tests now run with module flag set to commonjs
Updated runner.ts to compile with the module flag to improve test performance.
Merge branch 'moduletests' of https://github.com/AndrewGaspar/DefinitelyTyped into moduletests
Merge branch 'moduletests' of https://github.com/AndrewGaspar/DefinitelyTyped into moduletests
Merge branch 'moduletests' of https://github.com/AndrewGaspar/DefinitelyTyped into moduletests
Merge pull request #870 from AndrewGaspar/moduletests

tests now run with module flag set to commonjs