fix shared import paging without query

Conflicts:
	app/helpers/articles_helper.rb
	app/views/articles/_import_search_results.haml
allow to match category names on import/sync

Conflicts:
	app/controllers/articles_controller.rb
	config/locales/nl.yml
synchronize price on two decimal places only
allow to synchronize all articles of a shared supplier

Conflicts:
	app/models/article.rb
	app/models/supplier.rb
	app/views/suppliers/_form.html.haml
	config/locales/en.yml
	db/schema.rb
query performance improvements

Conflicts:
	app/models/article.rb
make messages link optional
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
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 :)
only show articles I ordered in shopping cart