Access non-reserved word properties using dot notation

So there are a couple of things I did here:

- Changed that way properties are accessed from using the string literal/square bracket notation to dot notation (for non-reserved words only); since one of `minified.js`'s premises is to keep its size to a minimum, every little helps - this saves you 3 characters on each property access, leading to reduced file sizes
- Removed trailing white spaces

Let me know what you think of these changes and kudos for putting together this sweet project!