remove npm, add warning about it.

Signed-off-by: Max Howell <max@methylblue.com>

Formula/npm.rb

@@ -1,78 +0,0 @@
-require 'formula'
-
-class Npm <Formula
-  url 'https://github.com/isaacs/npm/tarball/v0.2.18'
-  homepage 'http://npmjs.org/'
-  md5 'c218d4e8fb4d60671b95885a7b083ccf'
-  head 'git://github.com/isaacs/npm.git'
-
-  depends_on 'node'
-
-  skip_clean 'share/npm/bin'
-
-  def executable; <<-EOS
-#!/bin/sh
-exec "#{libexec}/cli.js" "$@"
-EOS
-  end
-
-  def node_lib
-    HOMEBREW_PREFIX+"lib/node"
-  end
-
-  def share_bin
-    HOMEBREW_PREFIX+"share/npm/bin"
-  end
-
-  def install
-    # Set a root & binroot that won't get wiped between updates
-    share_bin.mkpath
-    inreplace 'lib/utils/default-config.js' do |s|
-      s.gsub! /, binroot.*$/, ", binroot : \"#{share_bin}\""
-      s.gsub! /, root.*$/,    ", root : \"#{node_lib}\""
-    end
-
-    prefix.install ["LICENSE", "README.md"]
-    doc.install Dir["doc/*"]
-
-    # install all the required libs in libexec so `npm help` will work
-    libexec.install Dir["*"]
-
-    # add "npm-" prefix to man pages link them into the libexec man pages
-    man1.mkpath
-    Dir.chdir libexec + "man1" do
-      Dir["*"].each do |file|
-        if file == "npm.1"
-          ln_s "#{Dir.pwd}/#{file}", man1
-        else
-          ln_s "#{Dir.pwd}/#{file}", "#{man1}/npm-#{file}"
-        end
-      end
-    end
-
-    # install the wrapper executable
-    (bin+"npm").write executable
-
-    # bash-completion
-    (prefix+'etc/bash_completion.d').install libexec+'npm-completion.sh'
-  end
-
-  def caveats; <<-EOS.undent
-    npm will install binaries to:
-      #{share_bin}
-
-    You may want to add this to your PATH.
-
-    npm will install libraries to:
-      #{node_lib}/.npm
-
-    To manually remove libraries installed by npm, delete this (hidden!) folder.
-
-    npm will also symlink libraries to:
-      #{node_lib}
-
-    You will want to add this to your NODE_PATH if you wish to
-    require libraries without a path.
-    EOS
-  end
-end