fix cache not preserving timezone information
add test for timezone
fix expected object type
compare result timestamp based on millis + utcoffset
match query interval to granularity for this test
timezone support in groupby query
1) Adjust the Timeseries caching fixes to still store the long, but do the timezone adjustment on the way out.
2) Store a reference to the granularity object instead of getting it every time
Merge pull request #61 from metamx/fix-cache-timezone

Cache did not preserve timezone information