Major backward breaking changes

• Time, Timeline, and TimelineIterator have been split out to their own package,
  tzTime
• Lumenize has been simplfified down to four main classes: TimeSeriesCalculator,
  TransitionsCalculator, TimeInStateCalculator, and OLAPCube
• There are still a few addional helpers for data transformation and a histogram calculator
  function.
• The three main calculators implement the same interface and take similar config objects.
• They provide a superset of all of the functionality previously found in Lumenize.
• They all use the OLAPCube abstraction so they are much easier to understand, maintain, and
  upgrade.
• They now all support incremental updating, and serialization so you can cache results of
  an earlier calculation and restart justfeeding in the updated information.
• All this AND significant performance gains.