Update to skip the local template dir

This dir is used only for local testing and should not be a part of this
module.
Added the framework for the basic upload page

Does not work, yet. Still need to include the proper template variables
and debug the javascript.
Working on templatetags for AWS settings

The tags are just stubs at this point, but they do return their dummy
values correctly. Updated the templates, etc to ensure that the dummy
values are making it through.
Basic templates for POST upload and success
Added utils to generate policy and signature

Does not work, yet. Returns a HTTP 400 error and the localhost hostname
is hard-coded in the template.