Fixed the sample security voter to take into account the role hierarchy#5024

Closed

javiereguiluz wants to merge 6 commits intosymfony:2.3from

javiereguiluz:fix_4389

Commits on Feb 19, 2015

Commits on Feb 21, 2015

'security.role_hierarchy' service is only defined when you actually use a role hierarchy
javiereguiluz
committed

Commits on Feb 23, 2015

Fixed the code sample when the application doesn't use the RoleHierarchy
javiereguiluz
committed

Commits on Feb 24, 2015

Fixed some grammar issues
javiereguiluz
committed

Commits on Feb 28, 2015

Replaced TokenInterface by UserInterface
javiereguiluz
committed