message: release.sh: preventing release if version is not passed
diff: #!/bin/bash
  +if [ ! $1 ]; then
  + echo "Error: you should pass version number"
  +else
  echo "release: creating version"
  npm version $1
  echo "release: building styleguide"
  @@ -16,3 +19,4 @@ echo "release: pushing new tag to github"
  git push origin --tags
  echo "release: pushing styleguide submodule changes"
  git submodule foreach 'git push origin master'
  +fi
  