a couple of improvements to the js, no functional changes at all
comment
just the same code but done using the jquery methods, for their magics
some indentation, location of var declaration, updating of masonry layout while images are coming down
using the declared function rather than repeating this bit
since we set the placeholder image already in the template, we can just do the swapping here rather than double assign
Merge pull request #22 from Make-Magazine/projects_js_optimization

a couple of improvements to the js, no functional changes