*** Update trove descriptions and other sf.net text to include hashdeep

*** Edit md5deep web page
    - Describe hashdeep in the introduction

*** Create unit test directive/code

*** Write hashdeep quickstart guide

*** Create FAQ
  - Why nothing happens when I double click it
  - Why is this better than one line of shell

*** Add support for hashdeep to use NSRL files and other types?

*** Add timestamp mode (-t) to hashdeep
