clone: disable stream support on server side by default.
enable in hgrc like this:
[server]
stream=True
port:4:exportport:4:vaportightport:4:import/exportFIXME: history is wrong hereport:1:1:-:eggs:importport:1:2:+:eggs:vaportightport:1:3:+:eggs:import/exportport:0:2:+:spam:exportport:0:1:+:spam:importport:4:import/export