scifio-devel: Restore timestamp assignment in DateTools
FormatReaderTest: Use Timestamp to parse timestamps

This guarantees we parse millisecond-precision timestamps
correctly, which DateTools does not since it doesn't do
such flexible ISO-8601 parsing.
FormatReaderTest: Correct saneDate
ZeissCZIReader: Use Timestamp in place of DateTools.getTime
bioformats: Replace getTime usage with Timestamp for ISO8601 date formats
scifio-devel: DateTools date parsing occurs in UTC
Merge pull request #642 from rleigh-dundee/datetools-fixes

DateTools fixes