Remove comparator from framework

[tbostic32]

With the addition of @jstanley-mitre templating solution (see docs/template.md), this makes the comparator vestigial (at least for the web interface). Unless there is a use for it, we should consider removing it from the framework.

On the other hand, the comparator could be useful with other interfaces besides web, so maybe it doesn't make sense to remove/detangle it from the framework just yet.

[jstanley-mitre]

If we want to keep the comparator, we could fit the templating solution into its own comparator class. This would allow others to come up with their own custom comparing solutions and easily attach them to the framework.