Add start and end times to vouchers
Make test_datetime timezone aware
Merge branch 'master' into issue/1068/voucher_improvements

Conflicts:
	oscar/apps/voucher/abstract_models.py
Add shipping offers as voucher options
 Make product classes manageable within the dashboard closes #1094
Disallow deletion of product classes with products. ‘Class’ changed to ‘Type’ in UI.
Fix whitespace and line length
Fix misprint in commit f56226a.
Merge pull request #1235 from vovanbo/fix/misprint-in-f56226a

Fix misprint in commit f56226a
Fix product class admin

Slug fields need handling differently now that they are auto-slugfields.

Fixes #1233
Add echo statements to transifex script to aid debugging

It doesn't seem to be pushing successfully at the moment.
Transifex update
Fix travis transifex script

Required installing the client and skipping any syntax errors.
Add OSCAR_HOMEPAGE setting

Allow using a different app than promotions as the homepage view.
Fix the select_related() call in Basket.all_lines()

product__stockrecord doesn't exist anymore, use the stockrecord on the
basket line
Provide contextual markers

Fixes #1239
Merge pull request #846 from tangentlabs/issue/846-no-promotions-needed

Make it easy to not use promotions app
Correctly handle multiple wishlists

Previously, the 'key' kwarg was not respected and all products would get
added to the first wishlist.

Thanks to @DanielChu for reporting, and supplying a fix.
Fixes #1216
Rename partner.utils to partner.importers, and comments

It only contains importers. Also added comments about their usage,
or lack thereof.
Don't init select2/wysiwyg widgets outside of el

This wasn't done previously because I didn't know how.