[codeforamerica#13] Don't monitor exceptions in development or test

Only production and staging environments.

config/initializers/rollbar.rb

@@ -5,7 +5,7 @@
   # Without configuration, Rollbar is enabled by in all environments. 
   # To disable in specific environments, set config.enabled=false.
   # Here we'll disable in 'test':
-  if Rails.env.test?
+  if Rails.env.test? || Rails.env.development?
     config.enabled = false
   end