Squashed commit of the following:

commit aeb44de3bc42f86324a6242b6b8037dd4cb8fbc3
Author: David Pollak <feeder.of.the.bears@gmail.com>
Date:   Tue Mar 5 11:48:56 2013 -0800

    Squashed commit of the following:

    commit 24ff1d946cb1f80630e747a7793ba3f574fe7202
    Author: David Pollak <feeder.of.the.bears@gmail.com>
    Date:   Tue Mar 5 11:47:24 2013 -0800

        Removed external bcrypt depedency because the code is already in Lift

commit 09980e8263723f978784666d467e8256118d2446
Author: David Pollak <feeder.of.the.bears@gmail.com>
Date:   Tue Mar 5 11:32:01 2013 -0800

    MappedPassword now uses bcrypt, but is backward compatible with existing passwords and schemas