Use String.to_existing_atom to avoid leaking.

[Victor Borja]

A quick look at your code, seems like using your ExUtils to convert any request parameter into atoms is a bad idea (unless you used something like String.to_existing_atom), otherwise it would be really easy to create something that generates random parameter keys and quickly fills your atom table as they are never freed.

[Sheharyar Naseer]

Nice catch. I'll update the code to use String.to_existing_atom. Thanks!

[Sheharyar Naseer]

Version 0.2 published with the changes. I can't believe this slipped my mind, I had been using this on a production app for about two months before publishing it as a package. Also mentioned this in the Readme, to not scare off other devs. 😛

Thanks for pointing this out again. 😄