pypi: downcase main package name prior to seeing if it should be excluded
pypi: downcase main package name prior to seeing if it should be excluded

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