brew.rb: warn on deprecated/disabled formula.
brew.rb: warn on deprecated/disabled formula.

EricFromCanada/brew,mahori/brew,claui/brew,konqui/brew,konqui/brew,nandub/brew,mahori/brew,claui/brew,nandub/brew,vitorgalvao/brew,Homebrew/brew,JCount/brew,sjackman/homebrew,vitorgalvao/brew,Homebrew/brew,sjackman/homebrew,Homebrew/brew,reitermarkus/brew,mahori/brew,sjackman/homebrew,MikeMcQuaid/brew,claui/brew,nandub/brew,Homebrew/brew,konqui/brew,EricFromCanada/brew,reitermarkus/brew,claui/brew,vitorgalvao/brew,EricFromCanada/brew,sjackman/homebrew,EricFromCanada/brew,MikeMcQuaid/brew,JCount/brew,JCount/brew,reitermarkus/brew,MikeMcQuaid/brew,nandub/brew,reitermarkus/brew,vitorgalvao/brew,MikeMcQuaid/brew,mahori/brew,konqui/brew,JCount/brew