fixed #116 less build error should stop gulp.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
gulp support gulpfile.ls
Merge pull request #118 from appleboy/patch-2

gulp now supports livescript
Merge pull request #117 from appleboy/patch

fixed #116 less build error should stop gulp.
regen for 74c715b