Makes the log level of Logs.logDetailedException() configurable

git-svn-id: https://svn.forgerock.org/openig/trunk@680 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
OPENIG-324 (CR-5117) Log the detailed exception at debug level

git-svn-id: https://svn.forgerock.org/openig/trunk@681 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
OPENIG-324 (CR-5117) Improve OAuth 2.0 Exception's messages

* OAuth2TokenException refactored to only have a message field
* Do not re-print chained exception's message
* Better error messages

git-svn-id: https://svn.forgerock.org/openig/trunk@682 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
OPENIG-330 Open Source license tracking

git-svn-id: https://svn.forgerock.org/openig/trunk@683 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
Fix checkstyle

git-svn-id: https://svn.forgerock.org/openig/trunk@684 dbb9e58e-28e6-4ce0-90e8-f11d9605b710