Added release notes for 4.1.6.

Author: Boy Baukema

docs/release_notes/v4.1.6.md

@@ -0,0 +1,15 @@
+# SURFnet SURFconext EngineBlock v4.1.6 Release Notes #
+
+Miscellaneous bugfix release.
+
+* [crashes hard when SP requests HTTP-Artifact binding](https://github.com/OpenConext/OpenConext-engineblock/issues/70)
+* [WAYF: when no results found, pressing enter advances to the first IdP](https://github.com/OpenConext/OpenConext-engineblock/issues/69)
+* [Revert fix for issue 58](https://github.com/OpenConext/OpenConext-engineblock/issues/68)
+* [More verbose error reporting in logs](https://github.com/OpenConext/OpenConext-engineblock/issues/66)
+* [better error when missing or wrong certificate in sp metadata](https://github.com/OpenConext/OpenConext-engineblock/issues/65)
+* [Sending debug email fails with call to undefined method](https://github.com/OpenConext/OpenConext-engineblock/issues/62)
+* [Fix english language string to add missing variable.](https://github.com/OpenConext/OpenConext-engineblock/pull/59)
+* [AuthnRequests with ACSUrl but no ProtocolBinding](https://github.com/OpenConext/OpenConext-engineblock/issues/49)
+* [Retrieving SP-specific metadata for a nonexisting SP results in a 500 error](https://github.com/OpenConext/OpenConext-engineblock/issues/37)
+
+See [milestone 4.1.6 on GitHub](https://github.com/OpenConext/OpenConext-engineblock/issues?q=milestone%3A4.1.6+).