allow non-shared articles to be part of a shared supplier using a blank order number
show message when ignoring articles due to missing order number
Revert "make touch device events work on buttons (closes foodcoop-rostock/foodsoft#34, closes foodcoops/foodsoft#104)"

This reverts commit add4afd172e2e4674a0617f8dae56b1a8e8b5513.

Conflicts:
	app/assets/javascripts/application.js
make click work better on touch devices (closes foodcoops#104)
proper history line
deploy: persist changes to session_store iniitalizer [ci skip]
fix database sync when value is nil
Merge pull request #257 from wvengen/feature-touchclick

Better workaround for touch devices
fix i18n buglet
Merge pull request #256 from wvengen/feature-partial_shared_sync

Small change to allow non-shared articles with shared suppliers
Merge branch 'master' into feature-orders_group_edit

Conflicts:
	app/assets/javascripts/application.js
	app/helpers/orders_helper.rb