update file layout

lib/opencv/psyched_yaml.rb

@@ -0,0 +1,22 @@
+# -*- mode: ruby; coding: utf-8-unix -*- 
+# Psych loader for avoiding loading problem
+# (borrowed from Bundler 1.1.rc.7 https://github.com/carlhuda/bundler/blob/v1.1.rc.7/lib/bundler/psyched_yaml.rb )
+#
+# See: https://github.com/ruby-opencv/ruby-opencv/pull/6
+
+# Psych could be a gem
+begin
+  gem 'psych'
+rescue Gem::LoadError
+end if defined?(Gem)
+
+# Psych could be a stdlib
+begin
+  # it's too late if Syck is already loaded
+  require 'psych' unless defined?(Syck)
+rescue LoadError
+end
+
+# Psych might NOT EXIST AT ALL
+require 'yaml'
+