Misc changes

[gmarty]

This PR contains:

• minor changes in coding standard & style
• a minor change to replace +new Date by the fast Date.now() in throttle()
• development in strict mode

Though it should work theoretically, I couldn't run the tests, so please make sure everything is OK before merging.

[vvo]

Im not sure about changing my coding style of prototype to direct assign and anonymous functions.

prototype = {name: function(){}}

vs

prototype.name = function name() {}

I'm not confortable with erasing the prototype. Also, I'm not sure I still needs prototypes..

For the others commits, ok to merge.

[gmarty]

The main thing here is the use of date.now() and its polyfill. The rest is just a matter of coding standard/style.

As a singleton, your object probably don't need prototypes here.

[vvo]

Code completely reworked, pull request no more relevant.

Still, I now use grunt thanks to your first commit. And there's no more prototype things around.