Merge pull request #482 from vascofernandes/master

Release version 8.5.1

Merge pull request #398 from shaardie/ldap_multiple_entries

Merge pull request #397 from shaardie/ldap_provider_attribute

Merge pull request #396 from shaardie/ldap_search_filter

Merge pull request #395 from shaardie/ldap_pool_lifetime

Merge pull request #1 from vascofernandes/vascofernandes-saml2-perf

Update saml2.py

Release v8.5.0

Fix typo in error handler for BadRequest

Merge pull request #464 from jonathanperret/patch-2

Merge pull request #465 from ceko/acr-mapping-change

Merge pull request #467 from szabogyula/patch-2

Merge pull request #466 from szabogyula/patch-1

Update one-to-many.md