Skip frivolous `rake` on Gem installs

Since we are ultimately performing a `gem install` Bundler will do us
no good when it comes to
Remove `chef-windows` software and project

The main `chef` project definition now builds correctly across ALL
platforms.
Update to `omnibus` cookbook `2.3.0`
Update build scripts for Omnibus 4 CLI options
Ensure `openssl-customization` dep exists in ChefDK software
Remove legacy `chef-solo` code from build scripts
Bump Ruby/RubyGems/Bundler versions; Fixes ##228
Fully-qualify `Omnibus::Config`
Bump fetcher read timeout to 2 minutes
Prefer Ruby 2.1.2 if a box has it installed
Fix variable name in one of Chef's PKG templates
Switch back to Ruby 1.9.3 because of Solaris $REASONS
Clean up Chef gem location logic in MSI packager config
Appbundle Ohai
[WIP] updated omnibus and omnibus-software with fixes

This should not be merged!
Ensure `bundler` dep is properly declared

We need to install bundler before attempting a
`bundle install`.