DDF-891: Changed PEPAuthorizingInterceptor to not use wsa:Action for PEP decisions
Fixed JUnit tests for DDF-891
Fixed style issues
DDF-891 review modifications:
  Added some documentation detail on the getActionUri method.
  Utilized constants for some strings.
  Modified some logging statement to use SLF4J parameterized logging.
DDF-891 review modifications: updated test with more coverage.
Merge pull request #11 from eddy-chan/master

Pull request for DDF-891