Updated dockerfile
Created new env variable for hanlon_subnets which is required when running Hanlon in a docker container.
Merge pull request #298 from jcpowermac/fb/update-dockerfile-297

Updated dockerfile
Changes in gemfile
New versions of grape and grape-swagger seemed to have broken Hanlon.  Forced the older version
incorrect gemfile syntax
Missed comma
Merge pull request #302 from jcpowermac/tb/fix-grape-version

Resolved grape erors
Added fuseiso to apt-get
In order to support extracting isos fuseiso must be installed.
Merge pull request #304 from jcpowermac/tb/dockerfile-missing-fuseiso-303

Added fuseiso to apt-get
Remove rubyruntime from RHEL models

Removed @ruby-runtime from kickstart.erb
Merge pull request #305 from jcpowermac/tb/remove-rubyruntime-299

Remove rubyruntime from RHEL models