Improve video embedding and identify

This pull request has some feature improvements regarding the video embedding and the video identifying.

1) Support to http://www.youtube-nocookie.com was added ( necssary if any website is using it because of some reasons )
2) Youtube URLs are now being embedded based on their original domain host declared in the href attribute.
3) Query String after urls on embed is heavily improved by converting it to an object, extending it from different inputs ( plugin itself or user option ) and then remarging it again as a querystring. This improved a lot of issues that users were reporting regarding some unsupported features.
4) The grunt packages were upgraded to the latest version improving the output code (from CSS to JS)
5) The version was bumped to 1.4.0 but you're free to choose the one you prefer :)
6) Added some infos inside the package.json of the grunt folder.

I hope you may like this pull request, I have also some other ideas that I would like to implement over your plugin, but I want to be sure that you may want this changes as I don't want to live as a fork of your work.

Kind regards,
Julian