Feature Updates

• User datasets can now be added by putting .csv or .tsv files in the data/datasets/users folder
• KNN recommender implemented
• Recommenders can be bootstrapped with a knowledgebase of previous results
• Usability updates to the fitted model and example script that can be downloaded from the Experiments page for completed experiments
• Users can specify the 'target' column for a dataset
• Sphinx developer documentation added for the ai and recommender python code
• Major refactoring of the ai engine
• Major refactoring of ml code in machine instances
• Major dataset handling refactoring
• Docker test environment and test runner added for unit tests
• Jenkins CI configuration added to run unit and integration tests and build documentation