Bug introduced with sample coffeescript unit test

[wgorder]

This commit 469de58 introduced a sample coffeescript test which was nice, but it needs to be excluded as well in inject.js or the tests are being served up and causing errors.

add the following to the injectScripts var

    path.join('!' + conf.paths.tmp, '/serve/app/**/*.spec.js'),
    path.join('!' + conf.paths.tmp, '/serve/app/**/*.mock.js')

[wgorder]

Already fixed in existing PR