Update moment.js to v2.8.1.

git-svn-id: svn://svn.code.sf.net/p/processhacker/code@5638 21ef857c-d57f-4fe0-8362-d861dc6d29cd
Update pack.css with the latest clean-css.

git-svn-id: svn://svn.code.sf.net/p/processhacker/code@5639 21ef857c-d57f-4fe0-8362-d861dc6d29cd
Update pack.css with the latest clean-css.

git-svn-id: svn://svn.code.sf.net/p/processhacker/code@5640 21ef857c-d57f-4fe0-8362-d861dc6d29cd