Turned back on HTML Compression - Issue #24

Turned back on HTML Compression, this time with htmlmin grunt plugin. It basically reproduces http://kangax.github.com/html-minifier/

I'm pushing it to the grunt branch so you can review it and then decide to merge it to master or not.

I hope this helps solve #24 issue.

By the way: thanks for making browser-diet, it's just awesome!