Convert principalId to String
Add more check on principalId
typo
Merge pull request #246 from haio/master

Convert principalId to String
Ensure roleId and principalId to be string in Role#isInRole
Merge pull request #247 from haio/master

Ensure roleId and principalId to be string in Role#isInRole
Add user identity model
Add application/user associated identities