Urlscan

* Add "*" to allowed URL characters. Fix 125
* Strip whitespace from URLs. Fixes 124
* Redo redirection of sterr/stdout. Fix 122

* Bugfix in f-string
* Updated setup.py after tagging previous version

* Update TLD list
* Merge branch 'multi-select' into develop
* Fix 118, crash on navigating to non-existant line
* Pylint fixes
* Move to subprocess run instead of call and Popen
* Switch to f-strings

* User-option -W --whitespace-off: remove blank lines and ellipses
* Update documentation for feature --whitespace-off
* Correct regex example in urlscan.1
* Sort and align docstrings
* Merge branch 'palette' into develop
* Fix for https://github.com/firecat53/urlscan/issues/115
* Revert "Hopefully fix 105. Escapes every "&" in the URL". Fixes 107
* Update packaging and setup to current best practices

* Python 3.6+ required
* Convert to newer email.message.EmailMessage format for processing. Closes 98
* Hopefully fix 105. Escapes every "&" in the URL
* Attempt --run-safe implementation
* Fixes 106
* Scan a selection of email headers for URLs. Closes 97.
* Add option for custom regex. Closes 79.
* Allow $ as an acceptable trailing character
* Fix urwid reverse error. Thanks to pavoljuhas. Closes 99

* Change shebang to specifically call python3
* Add --width flag to change displayed width. Closes 92.
* Update tlds and copyright dates
* Remove workaround for fixed python webbrowser bug (94)
* Add -R option to reverse URL/context output. Closes 90
* Add --single option to quit after opening/copying first link. Closes 95
* Support wl-clipboard. Resolve 88.