Update a user.

Use id=self to reference the user associated to the current API token.

Optional permissions

• modify users Required if you want to modify any user other than yourself

• modify user-groups Required if you want to modify the groups associated to a user, unless you are a group admin

• modify user-roles Required if you want to modify the roles associated to a user

• read permissions Required to access the permissions associated with a user

• read sources Required to access the sources associated with a user