Turbolinks.visit support

It would be great if we could use `Turbolinks.visit` for auto_reload.  Here's some changes to that effect (they are built on top of my changes to pick the kaminari page method).  Again, no tests, because I wasn't sure what's going on with the separate test repo (seems like it would be hard to keep things in sync).

I put the visit method in the grid processor and made it public, which doesn't seem idle but it was the DRYest option.  Seems like it might be better for the clause that uses it in `wice_grid_saved_queries_init.js.coffee`, to just be moved to the grid processor and then visit could be a private method.