sort reporting hours chronologically
added fuction activeInitiatives to NightlyData.php
use active inits only in processData()
create $locations array for active inits in NightlyData.php
build location-based scaffold, added a few class variables
populateHash accomodates multiple locations, may need update for single locations
added function buildLocationStatsTable to NightlyData.php class
made several variables/functions private in NightlyData.php

They had been temporarily made public for testing purposes.
restored original code for non-location-based counts; eliminated unused variable currentInitTitle
change NightlyData.php so locationBreakdown is public and set in nightly.php
nightly-demo.php = web-based output demo, takes loc=true/false as argument