restore deleted file
create an instance of Calculator::Churn in order to access its config
bump point release for bugfix
Merge pull request #32 from kerrizor/fix-missing-file-bug

Fix missing file bug
Use the class name rather than the class name + object ID as the keys for the eventual metrics hash
Merge pull request #33 from kerrizor/fix-missing-stats-bug

Use class names rather than objects as metrics_hash keys