hotfix / upgrade editor plugin (#1337)
hotfix / upgrade editor plugin (#1337)

* use latest beta of editor: 0.3.0-beta-3

* upgrade editor for hotfix

jenkinsci/blueocean-plugin,kzantow/blueocean-plugin,jenkinsci/blueocean-plugin,jenkinsci/blueocean-plugin,kzantow/blueocean-plugin,kzantow/blueocean-plugin,jenkinsci/blueocean-plugin,jenkinsci/blueocean-plugin,kzantow/blueocean-plugin