FEATURE: scale up likes per day as users increase trust level

tl2 = 1.5 times the likes
tl3 = 2 times the likes
tl4 = 3 times the likes

configurable via tl[234]_additional_likes_per_day_multiplier site setting

lib/rate_limiter.rb

@@ -4,6 +4,8 @@ require_dependency 'rate_limiter/on_create_record'
 # A redis backed rate limiter.
 class RateLimiter
 
+  attr_reader :max, :secs, :user, :key
+
   def self.key_prefix
     "l-rate-limit:"
   end