Fixing test to check confidence in local model predictions

Fixing bug: delete_execution method now accepts query_string

Fixing bug: probability in local logistic regressions

Adding logistic regressions as a new model type for evaluations

Bug fixing: local logistic regression field_codings

Removing left over in tests

Reseting the version number

Adding test for missing text proportional local predictions

Fixing compatibility with csv writing in Python 3 for the fields summ…

…ary methods

Adding HISTORY log and making datetime optional in centroid input data