Make the DataPoints interface return uids instead of the names
Use RowKey#basetime instead of a separate implementation in RowSeq
Remove the tsdb references in the DataPoints implementations
Fix comment indentation in SpanGroup
Tag my todo with my handle
Add javadoc references on the methods implementing the new DataPoint methods
Use a byte[] compatible set in SpanGroup
Merge pull request #29 from hi3g/datapoints_no_tsdb

No TSDB reference to the DataPoints implementors