Fix compatibility with Ruby 1.9.x and proxies

lib/wayback_machine_downloader/archive_api.rb

@@ -5,12 +5,7 @@ module ArchiveAPI
 		request_url += url
 		request_url += parameters_for_api page_index
 
-        request_uri = URI.parse request_url
-        Net::HTTP.new('web.archive.org', nil).start { |http|
-            request = Net::HTTP::Get.new request_uri
-            response = http.request request
-            response.body
-        }
+    open(request_url).read
 	end
 
 	def parameters_for_api page_index