round shared unit conversion
make orderdoc work with unit conversion
add ordergroup limit for signup
small config refactoring
small signup controller refactoring
more signup refactoring
fix membership fee crediting (!)
load messages plugin by default
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
move ordering to group_order; redesign archive

decided that the faceted browser view belongs to the group_order
view/controller; also bring the group-order in line
separate group_orders show and edit
fix query performance
small group_order ui update
fix group_orders archive
start to make ordering work :)