Support for Atlassian Confluence Cloud

[aik099]

It turned out, that both Jira and Confluence use the same API, when used from Atlassian Cloud:

• Jira API call URL: /rest/api/2/resolution (get list of resolutions);
• Confluence API call URL: /wiki/api/v2/spaces (get the list of spaces).

How we deal with this:

1. tell about this in the docs
2. add some sample API calls
3. won't tell anybody

?