Remove . from kitchen machine name.
Remove . from kitchen machine name.

The machine names don't have dots in the version numbers.  Removing
the dots makes the example commands work.

strangelittlemonkey/omnibus,rapid7/omnibus,rhass/omnibus,adamleff/omnibus,adamleff/omnibus,servebox/omnibus,servebox/omnibus,strangelittlemonkey/omnibus,higanworks/omnibus,sh9189/omnibus,3ofcoins/chef-omnibus,mattray/omnibus,adamleff/omnibus,Altiscale/omnibus,intfrr/omnibus,jamesn/omnibus,ashhher3/omnibus,sh9189/omnibus,rhass/omnibus,Altiscale/omnibus,higanworks/omnibus,3ofcoins/chef-omnibus,lvfeng1130/omnibus,sh9189/omnibus,jamesn/omnibus,DataDog/omnibus-ruby,chef/omnibus,DataDog/omnibus-ruby,hugosato/omnibus,szechyjs/omnibus,chef/omnibus,szechyjs/omnibus,ashhher3/omnibus,hugosato/omnibus,jamesn/omnibus,rhass/omnibus,Altiscale/omnibus,rapid7/omnibus,rapid7/omnibus,chef/omnibus,strangelittlemonkey/omnibus,pskrz/omnibus,servebox/omnibus,pskrz/omnibus,intfrr/omnibus,pskrz/omnibus,hugosato/omnibus,mattray/omnibus,intfrr/omnibus,ashhher3/omnibus,3ofcoins/chef-omnibus,Scalr/omnibus,Scalr/omnibus,lvfeng1130/omnibus,mattray/omnibus,Scalr/omnibus,szechyjs/omnibus,higanworks/omnibus,lvfeng1130/omnibus,DataDog/omnibus-ruby