OS-2304 metadata agent needs to reload if cache is stale when loading sdc:resolvers and sdc:routes
joyent/smartos-live#223 imgadm should use progbar from npm
OS-2297: vmadm: add allowed_ips property for nics
OS-2200 fix update of resolvers when no current resolvers
also fixes 'make check', tests and removes some cruft.
Merge branch 'master' of git://github.com/joyent/smartos-live into ec