Update log encoder to work with current pipeline
Fix bug with division by int returning 0 (thanks Python). Re-arrage init params for readability
Add numpy for use in closenessScores()
Clean up Log Encoder tests. Add tests for count of buckets, output of closenessScores(), and output of getDecoderOutputFieldTypes(). Fix bug with integer vs scalar division. Remove previous dev cruft.
Implements feedback from @subutai on Log Encoder. Log encoded values are no longer scaled by 10x (not sure why this was done originally). Added better comments, doc string, and tests.
Remove rounding from log encoded min/max. This was unexpected behavior and was causing worse results.
Update Log Encoder tests to match new min/max logic in encoder.
Merge pull request #539 from iandanforth/mer334

fixes #540 - Update log encoder for modern use. Also fixes a bug in scalar encoder. Other misc cleanups.