chore(release): cut 4.21.0 [skip ci]

# [4.21.0](v4.20.0...v4.21.0) (2020-05-19)

### Features

* add support for virtual elements in popper and popover ([3a06526](3a06526))

Author: dhis2-bot

CHANGELOG.md

@@ -1,3 +1,10 @@
+# [4.21.0](https://github.com/dhis2/ui-core/compare/v4.20.0...v4.21.0) (2020-05-19)
+
+
+### Features
+
+* add support for virtual elements in popper and popover ([3a06526](https://github.com/dhis2/ui-core/commit/3a065266f390501eb8cb606fe84f7ba81621c0dc))
+
 # [4.20.0](https://github.com/dhis2/ui-core/compare/v4.19.1...v4.20.0) (2020-05-18)
 
 

package.json

@@ -1,7 +1,7 @@
 {
     "name": "@dhis2/ui-core",
     "description": "Component primitives for DHIS2 user interfaces",
-    "version": "4.20.0",
+    "version": "4.21.0",
     "main": "build/cjs/lib.js",
     "module": "build/es/lib.js",
     "sideEffects": false,