Log Message:
Update 3.31 to 3.71
-------------------
lft 3.71 / WhoB 3.71
----------------------
- WhoB: Autodetect input from STDIN (pipe) without '-f -'
- WhoB: Redirect some extraneous output to STDERR

lft 3.7 / WhoB 3.7
----------------------
- Added support for 4-byte ASNs
- Added support for whob reading bulk input from stdin using '-f -'

lft 3.6 / WhoB 3.6
----------------------
- Added support for 4-byte ASNs

lft 3.5 / WhoB 3.5
----------------------
- Roy T. provided DNS speed-ups
- Added GraphViz output option with -g

lft 3.35 / WhoB 3.5
----------------------
- Roy T. provided some clean-ups to avoid double free()s
- Bug fixes only

lft 3.33 / WhoB 3.5
----------------------
- Fixed free(sess->hostname) bug (segfault on unresolvable hostname)
- Improved error hanlding of pcap failures related to data link type
- Kurt's FreeBSD fix for pcap snprintf
- Bug fixes only

lft 3.32 / WhoB 3.5
----------------------
- Added support for several encapsulating protocols such as PPP
- no other changes