CLIMATE-462 - Move Ubuntu Easy OCW clean to VM init script
Resolve CLIMATE-462. Resolve PR #64.
CLIMATE-463 refactoring calcBiasAveragedOverTime metric
Merge branch 'CLIMATE-463', Merge PR #65, Resolved CLIMATE-463.
CLIMATE-470 - Update time base parsing string with new format

- Add a new string format for time base parsing to handle date strings
  of the form "1999-1-1 0".
Resolve CLIMATE-470. Merge PR #70.