This change switches us over to using handlebars templates for assembling the

HTML that's rendered to the client, rather than just sending a static HTML

page. This is in preparation for adding a bunch of new functionality and

additional views.
Also part of this is the addition of the errorhandler middleware, and set-up

for including images as part of the distribution and build process.

Ran a build and verified that the resulting templates were processed

  correctly.
Verified that things still loaded the same as before this change.