move templates to pinax-templates

[grahamu]

Move change_list.html and one_off_list.html templates into into pinax-templates, with similar semantic markup as other templates in that app.

[jaydenwindle]

It seems like these templates are extending from admin templates. I don't see a similar usage of admin templates in any of the other pinax projects. Were other projects previously dependent on admin templates and then changed? Do you have any preferences as to how they are included?

[grahamu]

@jaydenwindle seems reasonable to create an admin dir under pinax in pinax-templates, and extend from there just like is seen in pinax-points.