add use_anomaly_score flag, fix white spaces
1. Fix cross correlate shift to be in seconds. 2. add safety check for max()
fix typo. remove default to empty dict
1.add smooth method for time series. 2. fix bugs
fix doc string
adding float casting
removing comments to run as script, fix according to comments
Merge pull request #275 from yarongguo/correlator-enhancement

add use_anomaly_score flag, fix white spaces