Initial version for code review

Because the initial development was occurring on master, there isn't an easy way to do code review. This pull exists solely as a means to code review the entire project. Any changes will be put straight into master and this pull will be closed and the `initial-code-review` branch deleted. All future development will use pull requests into master to facilitate code review.
this is weird. I think we should handle this somewhere else, maybe? cast to int from `Memcache` or some TestMemcache wrapper?

Also, unless I missed something, `Membackend` -> `Memcache`