refactored IncomingCookieAuthMech to take an IGateway
implemented IncomingCookieAuthMech
to get user data from a remote url
updated to test get request
a different tack for instantiating AuthMechanismFactories
refactored signature auth mechs to use a Signature
completed refactor to use Signature class
fixed merge conflicts
renamed new class files to name.php
ensure boolean is returned
fixed bugs in making requests to external authentication
added a config reader
updated tests for new auth interfaces
fixed name of configured api key