chore(release): publish [skip ci]

- @ohif/extension-vtk@0.52.9
 - @ohif/ui@0.54.0
 - @ohif/viewer@1.8.0

platform/ui/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.
 
+# [0.54.0](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.53.4...@ohif/ui@0.54.0) (2019-10-14)
+
+
+### Features
+
+* Notification Service ([#1011](https://github.com/OHIF/Viewers/issues/1011)) ([92c8996](https://github.com/OHIF/Viewers/commit/92c8996))
+
+
+
+
+
 ## [0.53.4](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.53.3...@ohif/ui@0.53.4) (2019-10-11)
 
 **Note:** Version bump only for package @ohif/ui

platform/ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/ui",
-  "version": "0.53.4",
+  "version": "0.54.0",
   "description": "A set of React components for Medical Imaging Viewers",
   "author": "OHIF Contributors",
   "license": "MIT",