Fix new relic

lib/travis/api/app.rb

@@ -9,7 +9,6 @@ require 'redis'
 require 'gh'
 require 'hubble'
 require 'hubble/middleware'
-require 'newrelic_rpm'
 
 # Rack class implementing the HTTP API.
 # Instances respond to #call.

lib/travis/api/app/base.rb

@@ -1,5 +1,6 @@
 require 'travis/api/app'
 require 'sinatra/base'
+require 'new_relic/agent/instrumentation/rack'
 
 class Travis::Api::App
   # Superclass for any endpoint and middleware.
@@ -7,6 +8,10 @@ class Travis::Api::App
   class Base < Sinatra::Base
     register Extensions::SmartConstants
 
+    configure :production do
+      require 'newrelic_rpm'
+    end
+
     error NotImplementedError do
       content_type :txt
       status 501