Proper fix for #429

Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "typhoeus", "=0.6.7"
+gem "typhoeus", "~>0.6.8"
 gem "nokogiri"
 gem "json"
 gem "terminal-table"

lib/common/typhoeus_cache.rb

@@ -2,25 +2,14 @@
 
 require 'common/cache_file_store'
 
-# Implementaion of a cache_key (Typhoeus::Request#hash has too many options)
-module Typhoeus
-  class Request
-    module Cacheable
-      def cache_key
-        Digest::SHA2.hexdigest("#{url}-#{options[:body]}-#{options[:method]}")[0..32]
-      end
-    end
-  end
-end
-
 class TyphoeusCache < CacheFileStore
 
   def get(request)
-    read_entry(request.cache_key)
+    read_entry(request.hash.to_s)
   end
 
   def set(request, response)
-    write_entry(request.cache_key, response, request.cache_ttl)
+    write_entry(request.hash.to_s, response, request.cache_ttl)
   end
 
 end