raised an error when the featureset_name goes more than 210 characters.
added uses StratifiedKFold in cross validation message in the documentation
formatted the error message
added warning message in the predict() method when the number of features are different in the training model and the passed examples
Merge branch 'develop' into feature/upgrade_version_1
Merge pull request #172 from EducationalTestingService/feature/upgrade_version_1

Non-fork version of #168