relation.rb in influxer-1.0.1

- old
+ new

@@ -1,4 +1,5 @@
+require 'active_support/core_ext/module/delegation'
 require 'influxer/metrics/relation/time_query'
 require 'influxer/metrics/relation/calculations'
 require 'influxer/metrics/relation/where_clause'
 
 module Influxer