Added diff as an optional module to the make file
Fix diff module version

3.2 is the latest version of [the Diff module](drupal.org/project/diff).
Fixed diff version in make file
Merge pull request #4 from kasperg/patch-1

Fix diff module version
Update ding varnish default paths
Merge branch 'development' of github.com:ding2tal/ding_base into development
Merge remote-tracking branch 'origin' into release