* Fix old urls.
Still had some /admin/ urls floating around, which was causing bad
redirects in some instances. Should fix#4085
* The modal seems to be confusing license upload. be more explicit in the route we redirect to.
* Fix#4039. Use proper methods for location assets.
This also fixes a bunch of n+1 issues in the transformer. Also: curious
to know what Location::assets() does, because it doesn't do what I want
it to :)
This is round one of the rethink of checkout-to-everything. A location
now has a manager field, and the manager (by default) be responsible for
assets checked out to the location.