fixed issue when col is datetime64[ns]

added float 16

minor fix in auto_selector_of_categorical_features()

minor fix related to categorical features

small fix to exclude target and index columns from the list of potential categorical features

frozing version of bayes-optimization lib

fixing issue with updated bayes_opt library

updated xml

verified that FastMLFramework runs on p3.7

set local_scheduler=True

python2/3 compatibility improvement

error fix

basestring fix

updated xml

added six to setup; fixed issue of basestring in python2/3