Add support for serializing geometries to yaml using Syck or Psych.  Also includes updates to test-helpers to require forwardable for mini-test reporters and requires geos-extensions instead of geos_extensions.
Forgot to check in new test file.
Forgot to check in yaml.rb
Ruby 2.0 support.
Turns out naming the file yaml.rb makes Rails load it instead of Ruby's default yaml.rb.  So renaming.  Also fixed up the comments.
Refactor to use Geos.read, location of files, consistency.
JRuby also seems to want to remove linebreaks from this test.