Add payment gateway to transactions with validations
Paypal urls and :none pgw type
Move transaction create logic to transaction service
Migrate data
Don't show initiated on inbox
Merge pull request #694 from sharetribe/pgw-info-to-transaction

Add transaction service create and refactor accordingly
Fix meta
Show profile messages
Admin rights change affects only current marketplace
Changes to posting allowed affect only current marketplace
Merge pull request #700 from sharetribe/hotfix-admin

Admin rights change affects only current marketplace
Translations
Fix error: Inbox assumes transaction if payments in use
WTI
Fix missing transaction agreement checkbox
Update document
Payment total works for Paypal
Fix missing PaymentModel error
Initiated copy-texts
Translations for admin