Hardcoded time zone in test

[dblodgett-usgs]

https://github.com/52North/sos-importer/blob/master/52n-sos-importer-feeder/src/test/java/org/n52/sos/importer/feeder/model/TimestampTest.java#L48

This breaks on a computer in a different time zone.

[EHJ-52n]

@dblodgett-usgs
David, thank you very much for reporting this issue.
Could you please update your fork, re-run the test on your machine and close this issue if everything is fine.

[dblodgett-usgs]

I'm still getting a test failure.

java.lang.AssertionError:
Expected: is "1970-01-02T01:00:01-0-6:0-360"
got: "1970-01-01T18:00:01-06:00"

[EHJ-52n]

@dblodgett-usgs
I was missing the fact of negative timezone offsets.
This time the test should work with your locale, too.