Bump version
Unit test Set::clear
Update inline documentation
Tweak Set::clear unit test
Cleaned up Route code
Small Fix
Small Fix
Merge remote-tracking branch 'gmanricks/refactor_groups' into release-2.3.0
Update Slim's custom error handler
Merge branch 'release-2.3.0'
Merge https://github.com/codeguy/Slim into develop