specify a type parameter, so tht we can filter the children based
on type (i.e. album, photo, etc).
In addition, expose the sort order, so that we can specify the order
we want to return the children.
old ORM relationships from hanging around, which was causing problems
when doing MPTT manipulations (resulting in incorrect permission
propagation-- very bad!)
Kohana makes this type of transition fairly straightforward in that
all controllers/helpers/etc are still located in the cascading
filesystem without any extra effort, except that I've temporarily
added a hack to force modules/gallery into the module path.
Rename what's left of "core" to be "application" so that it conforms
more closely to the Kohana standard (basically, just
application/config/config.php which is the minimal thing that you need
in the application directory)
There's still considerable work left to be done here.
