fix #430 for CSS libraries

CSS Macro libraries should support $writeArray
Close #442
fix #444 Fix npm start command again

Since the new build changed some path, this commit is needed to fix npm start.
Finally it introduces a test case in node+mocha to make sure that the command keeps working.
It removes the watch feature as it was hogging the cpu.
fix #446 Missing dependency in aria.utils.css.Animations