add reloadAjax plugin to datatables

Just threw it in the main dataTable file because I didn't want to spend two days figuring out how to get requirejs to load it in the right order.
add progress spinner to table sDOM
use bProcessing
override sZeroRecords string
move table options to own object variable
load data via ajax on init
override fnServerData to use canvas' $.ajaxJSON
use tableOptions in init call
abstract out widget collapsed class
add term select handler
remove sfustats global
reformat html responder
customize json responder

DataTable expects data in a certain format - this customizes the JSON sent back so that it conforms.