6to5/6to5 — pull request #193 by Naddiseo (2014-11-19 00:28:15+00:00)
Title: Better variable renaming for let scopes.

I've done some playing with the let renaming so that it also uses remapping from parent scopes. It fixes cases like:
```javascript
let x = 1;
{
let x = 2;
{
let x = 3;
console.log(x); // should print 3
}
}
```