add JS hint rules

Signed-off-by: Paul de Wouters <paul@hmn.md>
Enqueue the minified version

Signed-off-by: Paul de Wouters <paul@hmn.md>
Minified JS

Signed-off-by: Paul de Wouters <paul@hmn.md>
Adds uglify and JS Hint tasks

Signed-off-by: Paul de Wouters <paul@hmn.md>