change you to your
Enable system to use default value if THUMBNAIL_DEBUG value does not exist in user"s settings.
Fixed tests
Fixes a comment.
Merge pull request #258 from gam-phon/patch-1

Fix grammar in docs.
Merge pull request #261 from huseyinyilmaz/master

Enable system to use default value if THUMBNAIL_DEBUG
Merge branch 'master' of github.com:mariocesar/sorl-thumbnail into filters