Update platforms in Test Kitchen config
Update platforms in Test Kitchen config

Remove 10.04 and bump RHELs to latests

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

vinyar/chef-ingredient,vinyar/chef-ingredient,GannettDigital/chef-ingredient,chef-cookbooks/chef-ingredient,GannettDigital/chef-ingredient,chef-cookbooks/chef-ingredient