Add company name to abstract model

Lazy fix: don't want to subclass 3 apss and 5 models to just addd the company name
 Fix bug  in ajax update basket

recent version of extra_views adds query_set parameter which collides
Merge remote-tracking branch 'origin/fix/missing_accessfn_dashboardnav'
Restrict django to version <1.5
Add missing migrations for address to order
Merge remote-tracking branch 'origin/master'

Conflicts:
	oscar/apps/basket/views.py
	setup.py
translations