You can click on the Google or Yahoo buttons to sign-in with these identity providers,
or you just type your identity uri and click on the little login button.
What do you mean by "simple" ?
i mean no dependancy to the worker or subprocess cube, numpy...
Also note that there is currently no support for prepare_update_entity.
imo its fine to raise notimplemented there
Ticket #5414761 - latest update on 2015/05/29, created on 2015/05/29 by Sylvain Thenault