Adds UserManagerInterface.
[ci skip]
UserManagerInterfaces moved -> to the Manager namespace. #2 [ci skip]
Merge branch 'develop' of github.com:LitGroup/LitGroupUserBundle into user_manager
Adds StringCanonicalizerInterface. #9
Add UserManager. #2
Refactors UserManagerInterface documentation.
Merge pull request #11 from LitGroup/user_manager

Adds User manager and NamenUserManagerImplementation #2