[logback-dev] Missing file from Git?

I may have missed something, but I recently forked ceki/logback on github and it seems to be missing GafferConfigurator? It's referenced in the code, but not in the git source. Judging by the number of classes in that package (6 - http://logback.qos.ch/apidocs/ch/qos/logback/classic/gaffer/package-summary....) and the number of files in git (1 - https://github.com/ceki/logback/tree/master/logback-classic/src/main/java/ch...) there could be as many as five files missing. I could always grab the source release, add them to my fork, and issue a pull request, but I suspect it's probably easier to simply add/commit the files that you probably already have. Greg