Merge changes of dev-image-carousel with master

Merge changes of dev-image-carousel with master.

This merge brings the product.image from product.images onto product view page with no carousel.

TODO:
1) Add js and css xpaths to include the js and css into the template properly.
2) Begin wrapping the HTML required around the image tags to create a product image carousel using WOWSlider in a generic way.
3) Add WOWslider options to allow for different options for layout of WOWslider for product images.
4) Add WOWslider slideshow for product category view grid to allow preview of multiple images on category page with lazyloading for extra images.