Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/redis/Guardfile

@@ -0,0 +1,5 @@
+guard :rspec, cmd: "rspec --color", all_on_start: false do
+  watch(/^spec\/(.+)_spec\.rb$/)
+  watch(/^recipes\/(.+)\.rb$/) { |m| "spec/#{m[1]}_spec.rb" }
+  watch("spec/spec_helper.rb") { "spec" }
+end