Improve demo App: editorial Resource

[sgobotta]

• Create an editorial Resource with properties:
  • id (Number)
  • name (String)
  • telephone (String)
  • address (String)
  • state (String)
  • country (Date)

Steps

• Create a fixture in the e2e/fixtures directory. You can use this tool to generate the editorial data, generate around 100 elements.
• Implement a fake editorials service in utils/server-test (use articles as example), an array of 3 editorials is fine, just take 3 elements of the generated fixture.
• Declare the editorials Resource in demo/App.js
• Implement e2e tests for list, create, view, edit (use the /articles tests as example)