Changed to use sha512 (this change will change the passwords which are generated, sadly).
Implemented basic key stretching for the user's password.
Removed debug lines in stretch_key().
Update README.md
Update README.md
Minor changes to stretch_key().
Fixed newbie NameError in stretch_key().
Replaced '/' with os.sep in the context of files for portability.
Added installation instructions.
Merge branch 'develop' of https://github.com/jce-devel/deterministicpwgen into develop
deterministicpwgen now creates a directory for itself (.deterministicpwgen) under the user's home directory.