Renaming plupload html4 and html5 from .min.js to -min.js.  Really need
to fix it so we use the names the plupload distro uses, but for now,
just to make AJAX upload work in non-debug mode, I'm renaming them, as
it's not entirely clear on the best way to handle using .min for just
plupload, and -min for all our stuff.
Another plupload JS rename.