chore(release): publish [skip ci]

- @ohif/extension-cornerstone@1.5.0
 - @ohif/extension-vtk@0.53.5
 - @ohif/core@1.9.0
 - @ohif/ui@0.62.0
 - @ohif/viewer@2.8.0

platform/core/CHANGELOG.md

@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.9.0](https://github.com/OHIF/Viewers/compare/@ohif/core@1.8.0...@ohif/core@1.9.0) (2019-11-13)
+
+
+### Features
+
+* expose UiNotifications service ([#1172](https://github.com/OHIF/Viewers/issues/1172)) ([5c04e34](https://github.com/OHIF/Viewers/commit/5c04e34c8fb2394ab7acd9eb4f2ab12afeb2f255))
+
+
+
+
+
 # [1.8.0](https://github.com/OHIF/Viewers/compare/@ohif/core@1.7.1...@ohif/core@1.8.0) (2019-11-12)
 
 

platform/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/core",
-  "version": "1.8.0",
+  "version": "1.9.0",
   "description": "Generic business logic for web-based medical imaging applications",
   "author": "OHIF Core Team",
   "license": "MIT",