initial commit
added rspec gem
added README
added tests for Node model
added Node model fix tests
added tests for #build
added tests for URIHelper
added URIHelper imple
added nokogiri gem
added fixtures - test website. Copy hosted on http://assignment1.droxbob.com/
added impl for Node#build method
added tests for Node#add_child mehthod
added impl for Node#add_child mehthod
added tests form #build_tree
added vcr gem
added tests for #build_tree and  'deep' and 'limit' args
added 'webmock' gem
added rake test tasks
added VCR cassettes
added impl for #build_tree