Don't asume the 'platform' attribute is always there
Add secondary alias for some command line options
Add noninteractive mode that prevents fabric prompts
Fix horrible --concurrency hack
Fix the rest of the options hacks
Use noninteractive option for deploy_chef as well
Don't assume ohai's output always contains 'platform' attributes
Merge pull request #169 from tobami/noninteractive-option

Noninteractive option
Fixes #167