Adding period after script tag for jade > v0.31.0 

Fixes error msg: "Implicit textOnly for `script` and `style` is deprecated.  Use `script.` or `style.` instead."

Altternative fix would be to pin jade to previous version (0.30.0 - not tested though).
Merge pull request #28 from G-Lex/master

Adding period after script tag for jade > v0.31.0