SAK-27734 update lang-datepicker to upstream jquery-ui-timepicker version 1.4.5


git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@311224 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-27734 upgrade moment.js to 2.7.0


git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@311225 66ffb92e-73f9-0310-93c1-f5514f145a0a