Fix anomaly config: fix #506
Add validation for get_diff's result (fixes #478)
Merge pull request #509 from gintenlabo/fix-478

Add validation for get_diff's result (fixes #478)
Merge pull request #508 from jubatus/fix-anomaly-config

Fix anomaly config: fix #506
version aware mix
send_model() implemented
put_diff should return boolean
put_diff should return boolean