[Cleanup] Credits
[Cleanup/API] Changed all REST examples to .json rather than .xml
[API] Updated the /rest/addresses documentation in the API.
[API] Updated the /rest/attachments documentation in the API.
[API] Updated the /rest/calendars documentation in the API.
[API] Updated the /rest/comments documentation in the API.
[API] Updated the /rest/contacts documentation in the API.
[API] Updated the /rest/contexts documentation in the API.
[API] Updated the /rest/domains documentation in the API.
[API] Updated the /rest/feedback documentation in the API.
[API] Updated the /rest/groups documentation in the API.
[API] Updated the /rest/kbarticles documentation in the API.
[API] Updated the /rest/messages documentation in the API.
[API] Updated the /rest/notifications documentation in the API.
[API] Updated the /rest/opps documentation in the API.
[API] Updated the /rest/orgs documentation in the API.
[API] Updated the /rest/parser documentation in the API.
[API] Updated the /rest/sensors documentation in the API.
[API] Updated the /rest/servers documentation in the API.
[API] Updated the /rest/tasks documentation in the API.