Merge pull request #1 from barnabyalter/master

Added expected parameters to logout_url function
Bump version for barnabyalter pull request fix.
Update travis badge URL.
Bump version of authpds
Bump version of authpds
Fix non opensso bug.
Fix bug in OpenSSO processing.
Wear coveralls.
Bump version of exlibris aleph and this gem.
Reference Xservice correctly.
Don't test 1.8
Update code climate badge.
Bump version and authpds.
Update error logging.
Don't log response. It's not useful.
Bump version of authpds :rocket:
Bump version :rocket:
Update for shibboleth :smile:
Update gems, docs and for shibboleth :rainbow:
Merge pull request #3 from NYULibraries/shibboleth

Shibboleth