enforce_statfs must be set to 0.

While a value of 1 worked for me the zfs(8) manpage clearly states
"the jail needs the enforce_statfs parameter set to 0".
Call devfs_init_rulesets() before starting the jails

I'm still in the opinion that an excplicit loading of the devfs rules is
a hack. The loading should be done by another rc script (in fact the
"devfs" script does this, but only if the user enables it in rc.conf) or
jail(8). While a patch for jail(8) was held out in prospect, nothing
happend for about 5 month. Therefor solve this issue by ourself.
Remove some debug output that sneaked in
Rome Makefile header. It's no longer necessary
Bump portversion to 1.1