bug: Fix roundup-admin security command. Lowercase optionalarg. Roles are indexed by lower case role name. So 'security User' and 'security user' should generate the same output. Also add testing for this case. Thread: https://sourceforge.net/p/roundup/mailman/roundup-users/thread/CAH-41398iTPhze7D_pZB8tqTBHF%3Dq6HYonbcG%2B%2BYN-ioDssXBw%40mail.gmail.com/#msg41557225 starting from: https://sourceforge.net/p/roundup/mailman/message/41557225/

# human timezones
pytz
# indexer
Whoosh
# xapian is also installed
# extra database support
psycopg2
mysqlclient
redis
# encryption
gpg
# java web tokens
PyJWT
# extra HTTP compression methods
Brotli
zstd
# jinja2 template engine
Jinja2