feauture/random_bg_order - randomizing background images by splicing from dbImages array with random index

adding comments
feature/random_bg_order - moving randomization to server side to body bgimg is index 0
Merge branch 'feature/random_bg_order' of https://github.com/ericbenwa/cornerstop-website into feature/random_bg_order

Conflicts:
	wp-content/themes/cornerstop/scripts/backgrounds.js
Git, wtf!