Dict.org client formula

Added Formula::etc()

Added Pathname::write() convenience function which can write a string out to
the file it points too, raising if it would have to overwrite.

Library/Homebrew/formula.rb

@@ -80,6 +80,7 @@ class Formula
   def bin; prefix+'bin' end
   def sbin; prefix+'sbin' end
   def doc; prefix+'share'+'doc'+name end
+  def etc; prefix+'etc' end
   def lib; prefix+'lib' end
   def libexec; prefix+'libexec' end
   def man; prefix+'share'+'man' end

Library/Homebrew/pathname+yeast.rb

@@ -53,6 +53,13 @@ class Pathname
       return self+src
     end
   end
+  
+  # we assume this pathname object is a file obviously
+  def write content
+    raise "Will not overwrite #{f}" if exist? and not ARGV.force?
+    dirname.mkpath
+    File.open(self, 'w') {|f| f.write content }
+  end
 
   def cp dst
     if file?