Update to 17.2.4 (#643)

* Update to 17.2.4

* Add description for searchEnabled option

* Update milestone link

* Update devextreme

Author: dxvladislavvolkov

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 17.2.4 (2017-12-13)
+
+### Bug Fixes
+
+[Open the list of closed bugs](https://github.com/DevExpress/devextreme-angular/milestone/29?closed=1)
+
 ## 17.2.4-beta.1 (2017-12-04)
 
 ### Bug Fixes