Chore: 1.11.0

# [1.11.0](https://git.rwth-aachen.de/coscine/cs/database/compare/v1.10.0...v1.11.0) (2019-12-16)

### New

* Add Attributes for Shibboleth Integration (coscine/issues#525) ([beca0400](https://git.rwth-aachen.de/coscine/cs/database/commit/beca0400c41b401eb910f476d3d74c081cf9c43d)), closes [coscine/issues#525](https://git.rwth-aachen.de/coscine/issues/issues/525) [coscine/issues#526](https://git.rwth-aachen.de/coscine/issues/issues/526)