[dateStamp] creating date stamp with string including time zone information fails

[roboguy222]

Normally we get the string to pass to the datestamp with utc.isoformat() or whatever, but if this has timezone info associated it, a +00:00 or whatever the offset is is added onto the end. dateStamp() errors out in this case.

[amopremcak]

This issue is related to a lack of documentation for the dateStamp class. The method dateStamp.dateStamp now excepts an optional argument named utcDateISO as opposed to just dateISO which was the original source of confusion. This method was never intended to handle strings with a timezone offset.