Print warnings if a json file not found when writing summary file. Raise exception if none of the json files were found when writing summary file
refactored methods for printing results and summary.  made some minor changes to the .results files (e.g., "fold: average" instead of "Average")
Merge branch 'release/0.9.8' into develop
Print warnings if a json file not found when writing summary file. Raise exception if none of the json files were found when writing summary file
refactored methods for printing results and summary.  made some minor changes to the .results files (e.g., "fold: average" instead of "Average")
Added test for summary file and created subfolders to clean up the tests directory
Fix summary writing unit test
Made Learner.probability a property and simplified checks for LinearSVC and probability mode.
probability now gets set after model_type.
Travis now tests on Python 3.3 as well, since we no longer use ml_metrics.
Made a better summary file test
Updated author list in test_skll.py
Reorganized summary test to use the yield pattern so that the specific learner that fails can be identified when the test runs
Made apt-get more verbose to prevent travis from thinking builds have stalled and terminating them.
Fixed bug in summary test
Merge pull request #20 from EducationalTestingService/feature/fix_prediction_printing

Fix prediction printing
Change summary test failure message to include the two scores
Merge pull request #22 from EducationalTestingService/combined_output

Summary results file and unit test reorganization
Updated changelog and version number for v0.9.9 release.
Merge branch 'release/0.9.9'