Set emails via git-base-account
Improve the README

It isn't a complete picture, and still has some
inaccuracies, but it is better.
Fix a typo
Refactor; permissions are explicit
Work with Flask-ACL changes
Stricter ACL parsing; fix bug
Permission sets can be strings or callables
Clean up old module
Expand upon permission set types in docs
Move predicates and permission sets to AuthManager