MOB-120: Added checks for required Firebase config nodes
MOB-120: Complete lists for filter_ui levels
MOB-120: Updated "default" options on the filter view with the spreadsheet values from Jacqui
Merge branch 'develop' of https://github.com/red-tricycle/things-to-do-server into feat/MOB-120#filter_ui_data

Conflicts:
	js/cronService.js
Added "New" and "Upcoming" to top-level filter set per decision from Frank and Jacqui
MOB-124: Added handling for zero-length hearters and comments array on count update