Added constructor with only the name property.
Tier support for the File-based identity store.
Tier support for the DefaultIdentityManager.
Added test case for Tier. Small changes to the test suite.
Code refactoring.
Merge remote-tracking branch 'shane/master' into picketlink-relationship
Code refactoring.
Merge pull request #7 from pedroigor/picketlink-relationship

Tier support.