Export password storage API from top-level module.
Export password storage API from top-level module.

Also docs (I wish you could re-export docs...)

Signed-off-by: Austin Seipp <48c905ac3851f382b914247d97dd93273d5ff555@pobox.com>

thoughtpolice/hs-nacl,thoughtpolice/hs-nacl,thoughtpolice/hs-nacl,thoughtpolice/hs-nacl,thoughtpolice/hs-nacl