Strip whitespace from start/end of search term

Remove whitespace from beginning and end of search term (UPC and Title)
in dashboard
Allow test cases to consider a custom Oscar user model

Most test cases only consider the default Django user model that
contains the username field. As soon as you extend Oscar's AbstractUser
model that doesn't contain a username field, tests that use
ClientTestCase or WebTestCase fail.
Fix missing link to offers list in offer details view.
Merge pull request #1193 from vovanbo/fix/offer-detail-link-to-list

Fix missing link to offers list in offer details view.
Bump version of MySQL-python

This fixes problems installing the egg, e.g. in
https://travis-ci.org/tangentlabs/django-oscar/builds/18443119

I'm unsure of what causes the regression as the version of the package
was pinned before, so presume that either Travis or dependencies caused
the regression.
Nonetheless, bumping it to the latest stable version changes the issue.
I don't think further investigation is necessary at this point, if no
other issues arise.
Preserve sort order in dashboard product search form

When you do a search in the product list, sort ordering is lost.

Sort order in the product list is kept in the query string – GET
variables. Add the current query string to the search form so that the
sort order is not reset when searching.

Fixes #1181

Issue #1195 is related.
Update docs on handling statics

Issue #1191 highlighted some confusion around the structure of static
files in Oscar. It's been marginally improved to hopefully clarify the
intentions.
Update getting started docs with Django 1.6 changes

Sitemaps isn't enabled by default anymore, which is now mentioned.

Mentioned on the mailing list
https://groups.google.com/d/msgid/django-oscar/720d5205-53b0-4ad0-b62e-8eba70af891e%40googlegroups.com
Render dashboard page title correctly

Was in the wrong block.
Ensure missing prices come at the end of search results

Requires a manual tweak to the sandbox Solr schema.xml
Search results can now be sorted

This change adds a drop-down to the default search results that allows
them to be sorted.  It submits a hidden form on change.

To allow title sorting, we employ dynamic fields (assuming Solr).
Show number of search results at top of page
Remove sandbox Google Analytics ID

Doesn't really belong in the main settings file.  Have moved to
settings_local on server.
Add "Showing X to Y of Z" summary on search results page
Enable spelling suggestions for search results
Update 0.7 release notes with search improvements
Don't show any facets when no search results
Index multiple categories for each product

Previously, only the primary category was indexed.
Make search sorting work with Whoosh

Price sorting seems odd still in Whoosh.  However, since Whoosh is just
a dumb engine we default for the sandbox I don't really care.  Use Solr
if you're serious!
Add test for hardcoded user model in migrations

New migrations need to be manually updated to correctly deal with custom
user models. This test fails if this isn't done.