* update copyright symbols to unicode
* clean up version screen/copyright notice
* small change to make commands more similar
* update imports to appease isort
* fix test
* update one more file merged since PR was open
* Implement --change-time flag
* Remove todo from --change-time bdd folder journal tests
* Add warning when --change-time used with no matching entries
* Add a test to make sure running --change-time with nothing prints a warning and doesn't change anything
* Add prompt for --change-time
* Don't prompt for --change-time when used with --edit and only one entry
* When using --edit and --change-time, change the time before editing
* Add test for --change-time used with --edit
* Modify failing --change-time test to conform to text in develop branch
