Normalize package.json.
Normalize package.json.

* Add missing properties
* Sort dependencies alphabetically

mgechev/uncss,sdgdsffdsfff/uncss,TheNotary/uncss,giakki/uncss,joecritch/uncss,Renji/uncss,Renji/uncss,webdev1001/uncss,cantyjeffrey/uncss,TheNotary/uncss,pingjiang/uncss,SteveGriffith/uncss,sdgdsffdsfff/uncss,joecritch/uncss,rafaelducati/uncss,charaplessa/uncss,cantyjeffrey/uncss,SteveGriffith/uncss,pingjiang/uncss,rafaelducati/uncss,webdev1001/uncss,giakki/uncss,charaplessa/uncss