TISTUD-4198: included ruby related rubles in the ruby feature.
Fix build issues related to TISTUD-4198 Include Ruby related rubles in the Ruby feature
TISTUD-4183 Move deploy.capistrano, deploy.engineyard and deploy.heroku plugins to Ruby feature
Fixing the ruby build.
Modified the ruby executable path.
Fixing the ruby unit tests build.
Merge branch 'release'