Update embed look

[markknol]

I changed the look of embedded snippets to make it look as if was a regular piece of Haxe code, This will make the snippets look more integrated on code.haxe.org which uses the embedded snippets a lot.

.. and when you clicked play the buttons change to:

.. on code,haxe it will look like this:

The edit button goes to try.haxe. It uses the code highlighter of code.haxe.

[clemos]

Thanks ! I'll release a new version today or this weekend.

[clemos]

It's online, thanks :D