cubicweb-email #1230224 add ability to specificy a pyro-uri to mboximport [rejected]

It's not for possible for the moment to specify which pyro server should be used. I would like to be able to do:

cubicweb-ctl mboximport PYRO://172.17.1.12:7771/blabla mboxfile

Any valid pyro-uri should be accepted (PYROLOC, PYRONAME, etc.)

prioritynormal
typeenhancement
appeared in<not specified>
done in<not specified>
load0.000
load left0.000
closed by<not specified>