swift/etc at 64bd1acb9ec0b6ecc9a2f1c56c053c0de6f5efe6 - swift - OpenDev: Free Software Needs Free Tools

Hopefully if we never do a release that supports signalfx no one will
ever use it and we won't have to maintain it.
Drive-by: refactor label model dispatch to fix a weird bug where a
config name could be a class attribute and blow up weird.
Change-Id: I2c67b59820c5ca094077bf47628426f4b0445ba0