test fold edge cases
Implement a plugin system, for easy loading of external namespaces
remove test dependency
Merge pull request #276 from pyr/feature-plugins

Implement a plugin system, for easy loading of external namespaces
change naming strategy as discussed on irc
Merge pull request #277 from pyr/feature-plugins

change naming strategy as discussed on irc
Merge pull request #275 from pyr/test-folds

test fold edge cases