DateTimeType first tries to parse a string with timezone and falls back to the parser without timezone.
DateTimeType: DATE_FORMATTER_WITHTZ => DATE_FORMATTER_WITH_TZ
Merge branch 'master' of https://github.com/boecko/openhab into boecko-master
Merged PR #960 from branch 'boecko-master'
added UnitTest for DateTimeType
changed modifier