fix fax txt table
fix csv download (closes foodcoop-adam#129)
update README [ci skip]
fix csv download also when searching
handle ajax errors (closes foodcoops#300)

Conflicts:
	app/assets/javascripts/application.js
use new Mollie API
add payment details to financial transactions
show payment details in finance + ordergroup home
allow to skip notification after transaction
use financial transaction payment details with Mollie API
Support more complex Mollie transaction fees.
fix signup plugin after transaction change
fix Mollie buglets
show proper error when all articles are deselected in order edit
add pickup day to orders
first iteration
use affix for article info box
use proper form field names + show goa values
ui improvements
add shopping cart