Fixing truncation of special attribute (src and style) values containing '='

Exact same issue as #342 except with `src` and `style` which are considered _special_ attributes. Values for special attributes are passed to [getValue](https://github.com/bitovi/canjs/blob/master/view/live/live.js#L355) where they are run through a few regex.

The value passed to getValue has the attribute name in it followed by an `=`, so  if your `src` value has a '=' in it like `myImage.png?wid=900&hei=450`, getValue would be operating on `src="myImage.png?wid=900&hei=450"` and you would end up with `450`.

Fix is to change the attribute regex to take the string after the first `=` instead of taking the string after the last `=`