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		hai 8 meses
pwgen	6145877086 add the RUST version	hai 8 meses
non_s.py	55f3f0ee77 the second version, plus a helper to strip out apostrophe's	%!s(int64=8) %!d(string=hai) anos
pwgen.py	86d1e66990 touchup on usage()	%!s(int64=8) %!d(string=hai) anos