URL hinter動くように

url_hinter.diff

--- url_hinter.rb       2015-09-04 10:39:08.000000000 +0900
+++ url_hinter.rb.bak   2015-09-04 10:38:52.000000000 +0900
@@ -359,10 +359,10 @@
   end

   def has_url?
-    !/https?:\/\/[^ 　\(\)\r\n]*/.match(remove_color_message).nil?
+    !/https?:\/\/[^ 　\(\)\r\n]*/.match(remove_color_message.force_encoding("UTF-8")).nil?
   end

   def urls
-    remove_color_message.scan(/https?:\/\/[^ 　\(\)\r\n]*/).uniq
+    remove_color_message.force_encoding("UTF-8").scan(/https?:\/\/[^ 　\(\)\r\n]*/).uniq
   end
 end