Only attempt to upgrade brews if they are outdated
Merge pull request #239 from hiremaga/prefer_brew_to_brew_install

Upgrade Hombrew and Use `brew` definition directly
Merge pull request #236 from hiremaga/soloist-1.0

Update README for soloist 1.0
Merge pull request #235 from hiremaga/rvm-1.18.15

RVM 1.18.15 and Ruby 1.9.3-p392
Ugly hack until MySQL fixes tz
Merge pull request #234 from hiremaga/rvmrc_system

Use system ruby in .rvmrc
Use master for homebrew

Homebrew wants to live on the edge. This said it's still possible to
customize your version to a sha if you'd prefer to lock things down for
your project.
Merge pull request #241 from cbguder/master

brew.rb tries to upgrade up-to-date brews