added 'hostname' variable for sshnokey because it needs it to function correctly
For some reason; 'sshnokey', as committed earlier might not actually work. At least in 0.20.5 and HEAD when i commited this, Racktables complained about needing an hostname for the sshnokey gateway. Regardless of where this problem started, this patch should add a hostname to the sshnokey gateway so it can be used in 'live ports'
Merge branch 'master' of https://github.com/nido/racktables