improve automation for publishing to relishapp.com

Rakefile

@@ -112,7 +112,12 @@ end
 desc "Push docs/cukes to relishapp using the relish-client-gem"
 task :relish, :version do |t, args|
   raise "rake relish[VERSION]" unless args[:version]
-  sh "cp Changelog.md features/Changelog.md"
+  sh "cp Changelog.md features/"
+  if `relish versions rspec/rspec-rails`.split.map(&:strip).include? args[:version]
+    puts "Version #{args[:version]} already exists"
+  else
+    sh "relish versions:add rspec/rspec-rails:#{args[:version]}"
+  end
   sh "relish push rspec/rspec-rails:#{args[:version]}"
   sh "rm features/Changelog.md"
 end