String conversion should not be forced for rbac
hasAssertion accepts both types
Default identity does not implement IdentityInterface

Default AuthenticationService identity is not directly usable.
Merge pull request #184 from jmleroux/patch-1

Default identity does not implement IdentityInterface
Update 04. Guards.md

Document the empty roles for `RouteGuard` configuration
Add permission interface
Merge pull request #189 from jmleroux/patch-1

Update 04. Guards.md
Merge pull request #190 from ZF-Commons/permission-interface

Add permission interface
Merge pull request #183 from arekkas/patch-1

String conversion should not be forced for rbac
Add upgrade note
Merge pull request #191 from ZF-Commons/2.1

Prepare release for 2.1
Fixed documentation Error regarding `role_provider_manager`
Merge pull request #192 from ojhaujjwal/master

Fixed documentation Error regarding `role_provider_manager`
Hotfix for #194 using an array cache
Renamed hotCache to roleCache
Added test ObjectRepositoryRoleProviderTest:testRoleCacheOnConsecutiveCalls()
Fixed link to the cookbook
Merge pull request #196 from asgrim/patch-1

Fixed link to the cookbook
Added clearRoleCache() to ObjectRepositoryRoleProvider and added a test for clearRoleCache()
Merge pull request #195 from arekkas/solves-194

Hotfix for #194