The left-hand field in dashboard is link

You can click on the left-hand field of a table in dashboard which links
to the detail page. See issue #638.
Replace None with -
Create new buttons are on the right top

Every simple button for *Create new* is placed now on the right top.
Complicated forms for creating new entities (eg. Create new product) are
still on their place, though.
Updated functional test for new category

The name of link was changed when moving 'New category' button right top
to 'Create new category' to match consistency with others dashboard
pages.
Added 'dig-style pagination'

Created additional pagination style `ellipses_pagination` which emulates
dig-style pagination, see issue #638. Instead of links only to previous
and next page, the list of page numbers is displayed. To prevent
displaying enormous number of page numbers, only couple of page numbers
are shown (first N, couple of pages around the current page, last N
pages). See `oscar/templatetags/ellipses_pagination.py` for algorithm
description.

The new pagination is not deployed as default pagination yet. You can
change that by changing partials to `ellipses_pagination` instead of
`pagination`.
Add "save now" button to editing offers

When editing an existing offer, there is an additional button to save
changes immediately instead of finishing all 4 steps of offer editing
wizard. Partially fixes #638.
Move filter button to stock alert table

Button to filter stock alerts had a separate table with only one button
in dashboard. In result, much space was wasted for this single button.
Add sortable column headings where appropriate

Partially fixes #638.
Add tab "Recently edited" for products
Merge pull request #638

Conflicts:
	oscar/apps/dashboard/catalogue/views.py
	oscar/apps/dashboard/partners/views.py
	oscar/apps/dashboard/reviews/views.py
	oscar/templates/oscar/dashboard/catalogue/product_list.html
	oscar/templates/oscar/dashboard/orders/order_list.html
	oscar/templates/oscar/dashboard/pages/index.html
	oscar/templates/oscar/dashboard/ranges/range_list.html
	oscar/templates/oscar/dashboard/reports/partials/open_basket_report.html
	oscar/templates/oscar/dashboard/reports/partials/order_report.html
	oscar/templates/oscar/dashboard/reports/partials/submitted_basket_report.html
	oscar/templates/oscar/dashboard/reports/partials/user_report.html
Merge branch 'master' of github.com:tangentlabs/django-oscar