updated branch and chef server version to tested and latest releases
Merge pull request #3 from jamesthorne/master

install-chef-client.sh argument checks and port addition
Merge pull request #5 from jacobwagner/master

updated branch and chef server version to tested and latest releases
Update knife path for Chef Server 11.0.8

Closes #6
Reverted Chef Server version back to 11.0.4-1 from 11.0.8-1 which introduces changes the script doesn't account for yet