Raise Liquid::ZeroDivisionError instead of ZeroDivisionError.

lib/liquid/errors.rb

@@ -57,4 +57,5 @@ module Liquid
   StackLevelError = Class.new(Error)
   TaintedError = Class.new(Error)
   MemoryError = Class.new(Error)
+  ZeroDivisionError = Class.new(Error)
 end

lib/liquid/standardfilters.rb

@@ -279,6 +279,8 @@ module Liquid
     # division
     def divided_by(input, operand)
       apply_operation(input, operand, :/)
+    rescue ::ZeroDivisionError => e
+      raise Liquid::ZeroDivisionError.new(e.message)
     end
 
     def modulo(input, operand)