Switch d3 library

@KHarshawat @drewrwilson 
* Update all graphs to use [dimplejs](http://dimplejs.org/)
* Remove unused chart libraries
* Remove unused crime icons (consumption & incidentally related crimes)
* General cleanup
Cool, just wanted to make sure it had the ability to be responsive otherwise that would've led to some headaches. Definitely down to style it. This branch looks good to go!