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 743a3aad4e added -n and -N to allow numbers as the separators		8 rokov pred
non_s.py	55f3f0ee77 the second version, plus a helper to strip out apostrophe's	8 rokov pred
pwgen.py	743a3aad4e added -n and -N to allow numbers as the separators	8 rokov pred