-More graceful shutdown of node cluster on 'npm stop' with better cleanup of resources on exit
-Added new stop_explorer.sh script which looks up the explorer port # via settings file and closes the application running on that port # instead of saving and killing the process by pid as it did before
-Added support for pm2 and forever using 'npm run start-pm2' and 'npm run start-forever' respectively
-pm2 is automatically installed when starting with 'npm run start-pm2' if it is not already installed
-forever is automatically installed when starting with 'npm run start-forever' if it is not already installed
-Updated existing npm commands in package.json by replacing hardcoded 'node' with '$(which node)'
-/path/to/nodejs changed to /path/to/node in the /settings.json.template, /lib/settings.js and /scripts/sync.js files
-README updates:
-Added a new 'Start/Stop the Explorer' section
-Added PM2 instructions to the 'Start/Stop the Explorer' section
-Moved Start/Stop Explorer instructions to the 'Start/Stop the Explorer' section
-Moved Forever instructions to the 'Start/Stop the Explorer' section
-/path/to/nodejs changed to /path/to/node
-Some additional small misc fixes
-Replace tabs with double-spaces
-Betting spacing and lining up of code functions
-Add missing semi-colons
-Remove extra characters and spaces where applicable
-Remove commented-out code fragments
-Add missing 2021 date to LICENSE
-Small touchups and other misc nitpickings
joeuhren