* modules/config.py
  -- Added 'ip_addr' to options
  -- Improved option table readability and formatting
* modules/sniffer/sniffer.py
  -- Set default source address to 'ip_addr'
  -- Added get_ip() to initialization; fetch the IP
     automatically, but still prompt in case
* modules/sniffer/password_sniffer.py
  modules/sniffer/traffic_sniffer.py
  modules/sniffer/http_sniffer.py
  -- Removed prompts for password