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()
What do you think about starting the profiler before you declare any of the variables in these methods? I'm sure the declarations are trivial, but then you're profiling all of the overhead when the function starts executing.