Merge branch 'release/0.9.11' into develop
Added some descriptive statisics and pearson correlation to regression results files (issue #1)
Removed stray comment
Removed stray comments
Merge branch 'develop' of https://github.com/EducationalTestingService/skll into develop
Really removed stray comment this time
Updated .gitignore to add output files from new tests.
fixed bugs in merging features from multiple input files
Added unit test for feature merging.
Merge branch 'feature/fixed_merging_features' into develop
Bumped version number up to 0.9.12, updated changelog, and updated .gitignore to include files related to merging unit test.
Merge branch 'release/0.9.12'