added position field for post
add default for position
add position to default ordering
increment position of other posts when a new one is created
make localisation as required field
ensure position is saved to git + test
Merge pull request #23 from praekelt/feature/issue-23-add-ordering-for-pages

add ordering for pages
Merge branch 'feature/issue-21-specify-content-license' into develop
Merge branch 'develop' of github.com:praekelt/unicore-cms-django into develop
ensure page primary_category can be cleared
ensure category source can be deselected
Merge pull request #25 from praekelt/feature/issue-25-ensure-fields-can-be-deselected

ensure fields can be deselected
rename migrations to ensure order
pin raven for consistency
Merge branch 'develop' into feature/issue-21-specify-content-license

Conflicts:
	cms/admin.py