updated libxml-ruby to v2, updated spec_helper pathing for ruby 1.9, added gemfile
update spec_helper pathing
add Gemfile, update libxml-ruby dependency
cleanup gemfile, requires, rdoc
You can update libxml-ruby to version 2.2.X (and rspec, but I think more modification is require) And this can close issue #19...
Sorry it's already up-to-date for libxml-ruby...