Allow migration using ZEO servers
Allow migration using ZEO servers

No longer FileStorage-only.
zeo:// and file:// URLs can now be specified

ThiefMaster/indico,OmeGak/indico,indico/indico,DirkHoffmann/indico,mic4ael/indico,DirkHoffmann/indico,OmeGak/indico,OmeGak/indico,DirkHoffmann/indico,indico/indico,mic4ael/indico,mvidalgarcia/indico,mvidalgarcia/indico,pferreir/indico,DirkHoffmann/indico,mic4ael/indico,mic4ael/indico,pferreir/indico,indico/indico,mvidalgarcia/indico,OmeGak/indico,ThiefMaster/indico,pferreir/indico,indico/indico,ThiefMaster/indico,ThiefMaster/indico,pferreir/indico,mvidalgarcia/indico