Better handling of server responses/errors.

Replace generated ID in server responses.
#3481
Fix password reset.

Send request data in the body, not as query params.
Work around apparent bug in Orion 1.0 code by setting
'login' value on request.
#3481
Default 'name' to same as 'email'.
Delete plugin maqetta.server.orion.standard.

Move login files into maqetta.server.orion.