Cleans up hero space

Sets hero space with DIV ID, CSS hides PRODUCT class content
Fixes selectors
Centers #hero div on page
HIdes product-specific #Hero Divs
Changes CSS to focus on .hidden class

to hide product-specific #Hero divs on page load.
Mentor Session Update

Adds changes discussed with Tim during 20131016 mentoring session.
Adds Images folder

Updates img src links and places all images files in folder for better
file management.
Adds jQuery functionality for all products
PLaces correct product descriptions in hero space
Widens hero space