[Review] Request from 'schubi2' @ 'yast/yast-autoinstallation/review_140919_init_script_blocking_user'

Please review the following changes:
  * b4f40d8 packaging
  * 30966a3 Blocking user login while executing autoyast init scripts with message

Inconsistency: "no_user_login" uses underscores while the other names have a dash.