Fixes issue https://github.com/simplesamlphp/simplesamlphp/issues/793

It was already added under 1.15

docs: Update reference to `redirect.trustedsites`. Fixes #786

doc: Switch to namespaced SimpleSAML\Module.

SAML: Fix typo in logged error message

Merge branch 'fix_missing_authtoken_cookie_params_rememberme' of https://github.com/renklaf/simplesamlphp into renklaf-fix_missing_authtoken_cookie_params_rememberme

Fix example in the ScopeFromAttribute doc

Change the source attribute to `eduPersonPrincipalName` and add missing commas.

docs: Fix minor typos / grammar issues

Sort attribute values for consent

Prevent an assert by only calling a sub-search if needed

rewrite getServerPort

All descendants overload this function anyway

Also fixes edge-case situation where $_SERVER['SERVER_PORT'] is not set for an HTTPS connection, this function would return an explicit port 80 i.e. ":80" rather than an empty string.

As per mailinglist-discussion, consent-stats were never processed by the statistics-module due to inconsistent logging:
https://groups.google.com/forum/#!topic/simplesamlphp/Gc97OeUox2k