1.1.0

Fixed

• Critical issue with chi2 metric: Correlations were not properly handled and number
  of degrees of freedem were not correct (should be number of bins - 1, not number
  of bins).

Removed

• decorrelate argument to data method of DataWithErrors class, because it
  was incorrectly implemented and probably does not have reasonable use cases

Deprecated

• python 3.5 will not be supported for future releases