Merge remote-tracking branch 'origin/v1.12.0'

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## 1.12.0 - 2019-11-25
+## Changed
+- Add teacher count to classroom_count route
+
 ## 1.11.17 - 2019-10-08
 ## Changed
 - Fix query\_exec