log using fallbacks and refactored looking up RoleProviders. Closes #31
Merge pull request #32 from interlock/log-fallbacks

Enhanced logging, log fallbacks and fixed null scopes in logger
Role can now store Profile and Resource
Renamed SecurityRegistry to SessionRegistry
fixed bad order on resource, role model params for getPermission
Merge pull request #37 from interlock/permission-reference-role-profile

Role can now store Profile and Resource
Merge branch 'rename-session'
Merge branch 'master' of github.com:picatic/node-permission-architect
Doc updates