Vendor the external cookbooks

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

cookbooks/logrotate/libraries/matchers.rb

@@ -0,0 +1,11 @@
+if defined?(ChefSpec)
+  ChefSpec.define_matcher :logrotate_app
+
+  def enable_logrotate_app(resource)
+    ChefSpec::Matchers::ResourceMatcher.new(:logrotate_app, :enable, resource)
+  end
+
+  def disable_logrotate_app(resource)
+    ChefSpec::Matchers::ResourceMatcher.new(:logrotate_app, :disable, resource)
+  end
+end