Merge pull request #2 from kaitlin/master

Updated data loading, add'l API parameters
Merge pull request #5 from kaitlin/master

added price sorting
styles for the prototype
now with jQuery
add jquery, hourglass.js
some common stuff under the hourglass namespace
first stab prototype
s/worksite/site
add setFormData(), report errors
better text alignment
hush
clean up before bailing on errors
use a better name for the graph selection
add site field options, comment out schedule
add a plaecholder for hourly wage stats
fix incorrect grouping of hourly_wage_stats in /api/rates
add number of contracts to hourly_wage_stats aggregations
add hourly wage stats / min. experience chart
fixes #6, adds test for it, and testing fixture