Generate word-based passwords, inspired by XKCD/936.

Includes consideration for smart-phone keyboards, using space, period and comma as punctuation.

Unix based systems only, requires /usr/share/dict/words

Pat Beirne 6145877086 add the RUST version 8 mesiacov pred
pwgen 6145877086 add the RUST version 8 mesiacov pred
non_s.py 55f3f0ee77 the second version, plus a helper to strip out apostrophe's 8 rokov pred
pwgen.py 86d1e66990 touchup on usage() 8 rokov pred