New database sniffer
* modules/sniffer/__init__.py
  -- added database sniffer
* modules/sniffer/database_sniffer.py
  modules/sniffer/parser_mysql.py
  -- Added an initial version of a database sniffer.
     As of its current version, it sniffs and parses MySQL
	 packets, dumping queries, responses, and inialization
	 info (password hash, salt, username, etc.)  More databases
	 to come.
PostgreSQL sniffer and new menu support.
* modules/services/access_point.py
  -- comments
* modules/services/ftp.py
  modules/services/http.py
  modules/services/smb.py
  modules/services/ssh.py
  -- adjusted timeout to 3s
* modules/sniffers/database_sniffer.py
  modules/sniffers/parser_postgres.py
  -- Added first version of a PostgreSQL query parser.
     Parses most of the same stuff the MySQL one does;
     password hashes, usernames, queries, responses, etc.
* modules/sniffers/parser_mysql.py
  -- Added some debugging
* modules/util.py
  -- Added support for input buffering.  This allows you
     to move quickly through menus.  Enter space delimited
     integers to move through menus: '3 4' will automatically
     launch the database sniffer. '0 7 2' will move from the sniffer
     menu back to the session viewer and launch View Session, etc.
Well...
* modules/poison/dhcp.py
  modules/poison/nbns.py
  modules/services/service.py
  modules/sniffer/sniffer.py
  -- We learned a lot about CPU cycles, didn't we.