Multi-currency support (#425)

* Initial foundational pass at multi-currency

* Default format currency

* More work on currency and exchanging

* Re-build currencies on change

* Currency import/setup

* Background job overhaul + cheaper OXR plan support

* Lint fixes

* Test fixes

* Multi-currency setup instructions

* Allow decimals in the balance field

* Spacing fix for form

---------

Signed-off-by: Josh Pigford <josh@joshpigford.com>

config/environments/development.rb

@@ -64,6 +64,9 @@ Rails.application.configure do
   # Highlight code that enqueued background job in logs.
   config.active_job.verbose_enqueue_logs = true
 
+  # Set Active Job queue adapter
+  config.active_job.queue_adapter = :good_job
+
 
   # Raises error for missing translations.
   # config.i18n.raise_on_missing_translations = true

config/environments/production.rb

@@ -62,7 +62,7 @@ Rails.application.configure do
   # config.cache_store = :mem_cache_store
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
-  # config.active_job.queue_adapter = :resque
+  config.active_job.queue_adapter = :good_job
   # config.active_job.queue_name_prefix = "maybe_production"
 
   config.action_mailer.perform_caching = false