Attempt to automatically update the node label on XHR return
Merge branch 'master' of https://github.com/wouterbeek/WebQR
Changing back the URI of the request to create a circle

Changing back the URI of a circles POST request to the circles endpoint,
and not the local_uri. The local_uri is not an entity on the system yet,
we only use it for PUTting changes to the circle. When a circle needs to be
created we send a request to the process that does this. That is what the
endpoint denotes, and that is why we are using POST. Otherwise it should be a
PUT request where we specify that we want certain information at a specific
location, namely the local_uri. But that is not the case right now, I think.
Changed the opt field endpoint to endpoints (per suggestion in #25)