Continued Maintenance and Rewrite

[eastcoastcoder]

Hi @nmunson this is a fantastic app you've written. I've used it for many years off and on and recently I've needed some motivation to get back into the gym so I got the idea to rewrite this app completely in React with a library called OnsenUI.

I think it turned out great. I did a full rewrite to flex some ES6+ syntax but tried to keep it as accurate to the original variables/method names as possible.

My fork is located here:
https://github.com/ethanx94/warmup-reps

And I have a live version hosted through GitHub pages here:
https://ethanx94.github.io/warmup-reps/

If you would allow me I would love to be a maintainer for this project. Would you be interested if I submitted this as a PR here?