Some framework changes

+ Moved javascript enqueues to footer
+ Replace WP bundled jQuery with google CDN version
+ Add javascript validation to bbPress new topic form
+ Add author avatars to front page articles and forum topics
+ Begin framework of single topic page
bbPress Single Topic Page

+ Started framework for bbPress single topic
+ Added JS validation to new topic form
+ Added author avatars to articles and topics
+ Some new core user functions