Adding new environment variables to control customized private installs

Version bump

Typo and adding a test for atch_predict new option in multimodels

Removing leftover debug code

Sorting the centroids listend in summarize of local cluster alphabeti…

…cally

Encoding to utf-8 the cluster CSV statistics file output

Small refactoring

Adding missing test data file

Adding tests for proportional missing strategy predictions

Improving locale handling to avoid problems in console logs on Windows