[PLINK-418] - AuthenticationFilter is returning HTTP Status Code 500 when any AuthenticationException is thrown.
Merge pull request #273 from pedroigor/PLINK-418

[PLINK-418] - AuthenticationFilter is returning HTTP Status Code 500 when any AuthenticationException is thrown.
[PLINK-387] - Support for privilege inheritence chains.
Merge pull request #274 from pedroigor/PLINK-337

[PLINK-387] - Support for privilege inheritence chains.