RBAC rules.
Actions access check.
Data access check
Base controller.
Refactored end-users, distributors and users
Systems and PurchaseOrders
saveModel to createModel
Dynamic menu accordingly to permissions
Root, Sales, Manufacturer, Distr work under permissions
EndUser work under permissions
Filtering logic moved to base abstract model
Access rules to data (entries)
Merge pull request #15 from megarocks/access_control

Access control