RegEx for parsing 401 challenge; fix the user info properties; solidified the tests.
Some white space formatting.
Merge pull request #35 from MSOpenTech/dev

Test pull request, please ignore
Comments, typo for “tolerance” word, a basic test that ensures AuthorityValidation caching works.
Merge pull request #40 from MSOpenTech/AuthenticationParameters

RegEx for parsing 401 challenge; user info properties; tests