Merge pull request #12 from jaypipes/roles

Allow Authenticates plugins to set roles/groups
Merge pull request #14 from jaypipes/roles

Increase version to 0.2 and put back packages
Fix talons.helpers.import_function always returning None

In talons.helpers.import_function, the found function is not returned
and it returns None instead, causing TypeError when external.Authenticator
is used.
Add test to ensure talons.helpers.import_function returns a callable
Merge pull request #16 from sebasmagri/talons-helpers-doesnt-return-fn

Fix talons.helpers.import_function always returning None
Adds start of Authorization plugin framework

This patch adds a new interface, `talons.auth.interfaces.Authorizes`
which serves as the basis for the planned authorization plugin
framework.