Added argparse dependency.
Merge pull request #102 from hlein/master

Various spelling/grammar tweaks and typo fixes.
Merge branch 'master' of github.com:rohe/pysaml2
Faulty reference
Editorial
Add entity_attributes().

eduID needs to be able to get all entity attributes for an entity id,
not just the entity categories.

Conflicts:
	src/saml2/mdstore.py
Merge pull request #103 from fredrikt/entity_attribute_support

Add entity_attributes().