Capitalize 'Currency Exchange Loss Rate' column
Allow user to pass options to DataTables
No more initKivaSort()

Do the initialization in the main plugin function.
Use DataTable's processing indicator

Use DataTable's "ajax" method of providing it data (but do so through
our own function still) so that we can take advantage of the built-in
"Loading..." processing indicator.
Merge branch 'dev'

Conflicts:
	js/kiva_sort.js
Remove TODO item regarding 'loading' indicator