Delegate Tweet#profile_image_url and Tweet#profile_image_url_https to…

… Tweet#user

Closes #340.

lib/twitter.rb

@@ -38,7 +38,7 @@ class << self
     #
     # @return [Twitter::Client]
     def client
-      @client = Twitter::Client.new(options) unless defined?(@client) && @client.cache_key == options.hash
+      @client = Twitter::Client.new(options) unless defined?(@client) && @client.hash == options.hash
       @client
     end
 

lib/twitter/configurable.rb

@@ -1,9 +1,12 @@
+require 'forwardable'
 require 'twitter/error/configuration_error'
 
 module Twitter
   module Configurable
+    extend Forwardable
     attr_writer :consumer_key, :consumer_secret, :oauth_token, :oauth_token_secret
     attr_accessor :endpoint, :connection_options, :identity_map, :middleware
+    def_delegator :options, :hash
 
     class << self
 
@@ -37,11 +40,6 @@ def credentials?
       credentials.values.all?
     end
 
-    # @return [Fixnum]
-    def cache_key
-      options.hash
-    end
-
     def reset!
       Twitter::Configurable.keys.each do |key|
         instance_variable_set(:"@#{key}", Twitter::Default.options[key])

lib/twitter/tweet.rb

@@ -1,20 +1,23 @@
+require 'forwardable'
 require 'twitter/creatable'
 require 'twitter/exceptable'
 require 'twitter/identity'
 
 module Twitter
   class Tweet < Twitter::Identity
+    extend Forwardable
     include Twitter::Creatable
     include Twitter::Exceptable
     attr_reader :favorited, :favoriters, :from_user_id, :from_user_name,
       :in_reply_to_screen_name, :in_reply_to_attrs_id, :in_reply_to_status_id,
-      :in_reply_to_user_id, :iso_language_code, :profile_image_url,
-      :profile_image_url_https, :repliers, :retweeted, :retweeters, :source,
-      :text, :to_user, :to_user_id, :to_user_name, :truncated
+      :in_reply_to_user_id, :iso_language_code, :repliers, :retweeted,
+      :retweeters, :source, :text, :to_user, :to_user_id, :to_user_name,
+      :truncated
     alias in_reply_to_tweet_id in_reply_to_status_id
     alias favourited favorited
     alias favourited? favorited?
     alias favouriters favoriters
+    def_delegators :user, :profile_image_url, :profile_image_url_https
 
     # @return [Boolean]
     def entities?