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

Checking Logistic regression input data:

- When missing_numeric is False, all numeric fields are compulsory
in input data for Logistic Regression predictions.

Fixing bug in tests: incorrecly identified regression in ensemble

Typos and test change for python3

Bug fixing: local logistic regression failed for input_fields

Fixing version number in history

Changing history and version files