Vid 2013 - Adding bucky profiling to some JS

Added bucky profiling to: 
- media gallery 
- ligthbox loader
- videos module

Also did some code cleanup as I went. 

To do: 
- [ ] Add overall time from init to render of videos module
- [ ] Add mention of how many media items are being rendered in gallery.render()
Do you have to pass bucky in as an AMD module above? It looks like ```bucky``` is being declared as a variable on line 6, but then it's not initialized to anything before you start calling methods on it here.