Wrote several of the tests in HistoricalDataBrokerTest.
Wrote several of the tests in HistoricalDataBrokerTest.

Jumaga2015/qdms,underwater/qdms,qusma/qdms,leo90skk/qdms,KBurov/qdms,underwater/qdms,qusma/qdms,leo90skk/qdms