Fix cowry-docdata tests.
Fix race condition with Order creation.
Improvements for anonymous order.
Model and some api stuff`
Add language choices
Make orderitems smarter
add some Ember
Nice form and overview of selected vouchers
Small fix to help migrations
Merge branch 'master' of github.com:onepercentclub/bluebottle
Update some requirements.

* Remove django_gitrevision.
* Bump django_jenkins to 0.14.0.
Update comments in settings files.
Improvements to setting redirect URLs for docdata.
Merge branch 'master' of github.com:onepercentclub/bluebottle
Bug fix for get_payment_methods().
Add file logger for status changed notifications.
Merge branch 'master' into cart-order-improvements

Conflicts:
	apps/fund/views.py
Revert "Add file logger for status changed notifications."

This reverts commit 03a6486f8ea3d64b424df980a7271fdfdf03b4e3.
Add multiple vouchers & validation.
some style