expand listing service with transactiontype
added person query to service
pass braintree_client_side_encryption_key to locals instead of setting it global
refactored booking and remove globals from initiate.haml and preauthorized.haml
opposite_type was needed in preauth forms
transaction_type return translations for action_button_label
listing's opposite type was unnecessary after all
braintree settings can be fetched from service + encryption key away from globals
refactored verify_booking_data function
fixing typos
Merge pull request #657 from sharetribe/paypal-order-booking

Paypal order booking