Added Churn class. Made changes to work with local copies for diff
git-svn-id: https://svn.cs.york.ac.uk/svn/ossmeter/Software/source@1077 1b171192-1bc4-4300-84b6-1b6fde2e8ce3
Authored by: a.shahi@cwi.nl 2014-04-01
Parent(s): [2b1990]
Child(ren): [100fba]