Display correct date in animation date fields

The DateField component expects a local date, calling toDate on the
moment object adjusts the date from UTC to local time, we want the UTC
values to be displayed so we create a local time with the UTC values,
it is pretty nasty but javascript.
Indicate that the times and dates are in UTC

Javascript and moment do not appear to allow formatting that outputs the
TZ as a string like AEST etc, however Ext does, but these are not Ext
dates that are being used so the String UTC has to be hardcoded or so it
seems