message: build: 4.0.0-rc.1
diff: {
  "name": "jsxc",
  - "version": "4.0.0-alpha",
  + "version": "4.0.0-rc.1",
  "description": "Real-time xmpp chat application with video calls, file transfer and encrypted communication",
  "homepage": "https://www.jsxc.org/",
  "bugs": "https://github.com/jsxc/jsxc/issues",
  