TODO (July 2019):
	- refactor archive.py and search.py
	- test lists import with mariadb backend


usage: archive.py [-h] [--arch ARCH] url [url ...]

Mailinglists are dead. Long live mailinglists!

positional arguments:
  url          mailinglist urls to archive

optional arguments:
  -h, --help   show this help message and exit
  --arch ARCH  path to archives directory (default='archives')

  ---

usage: search.py [-h] [--list LIST [LIST ...]] [--field FIELD] keyword

Searches mailinglist's archives

positional arguments:
  keyword               keyword to search

optional arguments:
  -h, --help            show this help message and exit
  --list LIST [LIST ...]
                        mailinglist(s') name(s)
  --field FIELD         message field (i.e. 'content' or 'subject', etc.)