New translations
Fixed a bug in feedback mailer

If current community doesn’t have an admin, feedback should be sent to
superadmins instead even though feedback_to_admin is set to true.
Draft of api spec for paypal payments
get payment info by transaction id
Use external merchant id, use symbols
Draft of accounts api spec
response bodies for token validation
Draft of billing agreements API
Billing agreement charge + reformat all
format Money types
Payments api skeleton
Add request payment implementation
Helpers for account and success response handling
Payments service, create and cancel_request
Payments using payments api (without authorization)
Update spec to require community id everywhere
Use community_id as path parameter
payments authorization
refer to MerchantInjector with full path