add formula for bvi

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Updated man path.

Formula/bvi.rb

@@ -0,0 +1,12 @@
+require 'formula'
+
+class Bvi < Formula
+  url 'http://prdownloads.sourceforge.net/bvi/bvi-1.3.2.src.tar.gz'
+  homepage 'http://bvi.sourceforge.net'
+  md5 '4257305ffb27177a6d5208b2df4ca92d'
+
+  def install
+    system "./configure", "--prefix=#{prefix}", "--mandir=#{man}"
+    system "make install"
+  end
+end