fix bug with incorrect method call for dalli client

app/logical/api_limiter.rb

@@ -1,7 +1,7 @@
 module ApiLimiter
   def throttled?(ip_addr)
     key = "#{ip_addr}:#{Time.now.hour}"
-    MEMCACHE.fetch(key, 1.hour, true) {0}
+    MEMCACHE.fetch(key, 1.hour, :raw => true) {0}
     MEMCACHE.incr(key).to_i > CurrentUser.user.api_hourly_limit
   end