beremiz

fix bug: Beremiz IDE hangs during launching Beremiz_service

this is regression introduced as side effect by d7f474d [fix issue
with sometimes wrong return code of ProcessLogger]
These classes are intended for use server-side.
e.g. in a django view.py :
from pyjs.jsonrpc.django import JSONService, jsonremote
jsonservice = JSONRPCService()
@jsonremote(jsonservice)
def test(request, echo_param):
return "echoing the param back: %s" % echo_param