allow CW to act as a Pyro Server without registering the server to a Pyro Nameserver (closes #1528533)
This is achieved by configuring the pyro-ns-host to __NO_PYRONS__ (which is an illegal value for a host name)
The Pyro URI for the server can be retrieved by reading the pyro_uri attribute of the Repository
cubicweb-web: embedded-javascript-library usr/share/cubicweb/cubes/shared/data/jquery.js