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 a good suggestion so we can do just 1 function call rather than one for every key. I've made a note of it and will do this soon.