* 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
* modules/config.py
  -- Added 1/0 as valid bools
* modules/poison/arp.py
  modules/poison/dhcp.py
  modules/poison/nbns.py
  modules/sniffer/sniffer.py
  -- Added KeyboardInterrupt exceptions
* modules/services/ftp.py
  -- Fixed shutdown bug
* modules/sniffer/traffic_sniffer.py
  -- Added error formatting
* modules/services/access_point.py
  -- Catch a keyboard interrupt
* README
  -- updated link location
* modules/scanner/service_scan.py
  -- added databases
* modules/sniffer/sniffer.py
  modules/sniffer/http_sniffer.py
  modules/sniffer/password_sniffer.py
  modules/sniffer/traffic_sniffer.py
  -- Moved the sniff filter into the abstract class;
     just require each sniffer to set a filter variable.
* modules/util.py
  -- added function for retrieving raw byte array from Scapy layer
Merge branch 'dev' of github.com:hatRiot/zarp into dev
Merge branch 'dev'