Bump deps / remove guard
Bump deps / remove guard

Guard doesn't work on Ruby 2.1 and guard-foodcritic doesn't work with FC
7
Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

criteo-forks/powershell,opscode-cookbooks/powershell,chef-cookbooks/powershell