Added URI parser

Hey Cauê,

I came across this repo through the mailing list and read the what's planned sections and thought I would contribute my Uri parser, which is based on [jsuri](https://code.google.com/p/jsuri/) and what the tests are based on.

It does differ a little from jsuri, as in it doesn't support empty params, for example `test.com?arg=1&arg=` will be `test.com?arg=1`. 

If there's anything that you reckon should be changed, let me know :smile: