-Hashrate chart is populated from get_hashrate
-Difficulty chart is populated from get_difficulty
-Added a networkhistories collection to hold the new network data
-Index sync and resync functions now check for and update network history data at the end of the sync process
-restore_backup.sh and delete_database.sh scripts now drop the new networkhistories collection
-Added a new javascript library chartjs-plugin-crosshair which adds crosshair functionality to the new chart.js line charts
-Added new settings to settings.json for controlling things like collecting network_history data, independently enabling/disabling the network charts and changing colors of various aspects of the charts
-Updated README to introduce the network charts and added a line for the chartjs-plugin-crosshair library
-Greatly increases speed of database restore by removing the 'remove' cmds which are not only unnecessary but can be extremely time-consuming to run on large database collections while drop statements run very fast and free up everything required
-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
-Added a new "Masternodes" page which displays the current list of masternodes on the network
-/api/getmasternodelist is no longer publicly accessible and has been replaced by /ext/getmasternodelist which returns the masternode list from local collection instead of directly from wallet
-Added new masternode sync options to sync.js and sync.sh
-Added new masternodes_last_updated field to the Stats collection
-Updated delete_database.sh and restore_backup.sh to include support for the new masternodes collection
-Network header menu icon changed to allow the new Masternodes menu item to use the old network icon
Joe Uhren