OS-1895 fix problems updating tmpfs when tmpfs size not specified at create time.
OS-1881 force max_swap to always be >= 256M
OS-1864 don't accept invalid IP addresses.
OS-1900 fix dtrace-provider.js so correct binding is loaded.
Merge branch 'master' of git://github.com/joyent/smartos-live into ec
Use Everycity's fork of illumos-extra