New formula: vde

Adds VDE, Virtual Distributed Ethernet.

  http://vde.sourceforge.net

Closes Homebrew/homebrew#3894.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/vde.rb

@@ -0,0 +1,12 @@
+require 'formula'
+
+class Vde <Formula
+  url 'http://downloads.sourceforge.net/project/vde/vde2/2.3.1/vde2-2.3.1.tar.gz'
+  homepage 'http://vde.sourceforge.net/'
+  sha256 '6778c4a302b8fa3d9e2664760c9cf0bed02384984cbc79f773c1b230916e79ed'
+
+  def install
+    system "./configure", "--prefix=#{prefix}"
+    system "make install"
+  end
+end