1) Upgraded passlib==1.7.1 to passlib==1.7.2
2) Replace unmaintained Flask-Security with maintained Flask-Security-Too package, which is also compatible with python 3.8
3) Other compatibility code changes.
- Process watcher made fixed width with header changes, time details rounded to 2 decimals
- Query history will show "No query history" if no query fired. Query editor default size increased.
- Fixed a bug where New folder create button not working when in List mode and No files/folder present.
- Other minor improvements.
