remove mysql-server from being installed - was causing vm build to hang. Fix: #7
Add Redhat Network registration user and password options
Add sanity checks and warnings for missing RHN credentials
Merge branch 'master' of github.com:ankurcha/stemcell

* 'master' of github.com:ankurcha/stemcell:
  Fix typo
  Change option from --nogui to --gui
  Remove unused method
  Save the results for popular for no-args functions
  Don't expand target
  expand_path should be called on prefix