Get the existing upload to work

* Use PHP's built in session progress instead of APC.  (this makes it compatible with more servers)
* Works on our vagrant box's (don't have to install/configure APC)
* Fix progress styles and improve markup.  Styling will change, so this isn't as important.  I just wanted it to work while testing.

This is in preparation to hooking up the upload the @spennythug form.