[uMap] Only for OSM users

[Yohan Boniface]

On 28/02/2015 22:02, Jo wrote:
> If I limit it to know users, is there a way to include say Facebook or
> Twitter accounts?
>

No, you can only add editors that have already activated an account on 
the uMap instance you are using.
It's possible to activate an account from Twitter on 
umap.openstreeetmap.fr, but not from Facebook.

> And the next question: Is there a way to figure out who did what, some sort
> of version control?

Nope.