show price details in group orders overview
add price details to group order
fix create order (complements 7cda7414ed9c1bf34574c80b505d2053f4463df3)
hide payment details for now
Revert "hide payment details for now"

This reverts commit 671fa5146cf900f3f437aa9a1efd4f0f8691a719.
do hide but not functionality
rework payorders plugin
make payorders plugin work (with tests)
group_order javascript update
more payorder tweaks
hide payment in group order archive
more flexibility for plugins with ajax
fix ajax for payorder plugin
add payorder spec
allow to set maximum quantity per order for articles
fix signup for group_orders
remove unused listjs
fix payorder return_to link with ajax
fix group_orders column width
enable payorder by default