Fix Paperclip S3 url method signature

originally introduced in #9

Author: jesseplusplus

config/initializers/paperclip.rb

@@ -113,7 +113,7 @@ def copy_to_local_file(style, local_dest_path)
   module Paperclip
     module Storage
       module S3SignedExtensions
-        def url(style_name = default_style)
+        def url(style_name = default_style, options = {})
           if path(style_name)
             base_options = { expires_in: 1.week.to_i, time: Date.current.beginning_of_week.to_time }
             s3_url = ENV['S3_BUCKET'] + '.s3.' + ENV['S3_REGION'] + '.amazonaws.com'