Update Redis documentation (2.8.4)

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -156,7 +156,7 @@ credits = [
     'http://docs.python.org/3/license.html'
   ], [
     'Redis',
-    '2006-2013 Salvatore Sanfilippo and others',
+    '2006-2014 Salvatore Sanfilippo and others',
     'BSD',
     'https://raw.github.com/antirez/redis/unstable/COPYING'
   ], [

lib/docs/scrapers/redis.rb

@@ -1,7 +1,7 @@
 module Docs
   class Redis < UrlScraper
     self.type = 'redis'
-    self.version = 'up to 2.8.3'
+    self.version = 'up to 2.8.4'
     self.base_url = 'http://redis.io/commands'
 
     html_filters.push 'redis/entries', 'redis/clean_html', 'title'
@@ -12,7 +12,7 @@ module Docs
     options[:follow_links] = ->(filter) { filter.root_page? }
 
     options[:attribution] = <<-HTML
-      &copy; 2006&ndash;2013 Salvatore Sanfilippo and others<br>
+      &copy; 2006&ndash;2014 Salvatore Sanfilippo and others<br>
       Licensed under the three clause BSD license.
     HTML
   end