Initialize package
Added two mixin class
Added RBAC class
Added comments and some methods.
Modified Mixin model of Role, added allow and deny method in AccessControl
Get resource using flask.request.
Added check_permission function and authenticate function. Added check_perm decorator
Fixed a bug in class methods
Fixed bugs
Update README.md
Fixed bug with str.upper()
Improve code style.
Allow/Deny several roles at a time.
Made static view function in flask allowed.
Changed rule of checking permission, modified interface of check_permission, modified has_permission method.
Fixed bug of list.
add hook func which called when permission check failed.
modified a wrong design, change 405 to 403 when permission check is failed, and change http code from 405 to 404 when the resource is None.
add setup.py
Added test module.