Merge pull request #81 from evildmp/contacts-and-people-updates

Contacts and people updates
Merge pull request #82 from evildmp/forms

forms templates and CSS don't belong here
Merge pull request #83 from evildmp/fix-get-roles-bug

fix and test for Entity.get_roles_for_members() bug
Merge pull request #84 from evildmp/user-docs

docs for users
Merge pull request #85 from evildmp/user-docs

formatting
Merge pull request #86 from evildmp/user-docs

more user docs
Merge pull request #87 from evildmp/links_docs

link schema docs
Merge pull request #88 from evildmp/links_schema_for_forms

support for links to forms
Merge pull request #90 from evildmp/fix-get-real-entities-bug

Fix get real entities bug
Merge pull request #91 from evildmp/fix-roles

Fix roles
fix incorrect url pattern for archived studentships
vacancies_and_studentships/urls.py minor conflict resolved