Log Message:
Update ipv6-toolkit to version 1.4 from 1.3.4

Pkgsrc changes:
+ quieten warnings from gcc 4.5.3 about uninitialised variables

Distribution changes:
SI6 Networks' IPv6 Toolkit v1.4 release

   * frag6: Fixed the flooding option
     Fixed the fragment size used when employing the flooding option. It was
     prevously sending fragment sizes that where not a multiple of eight, and
     hence these fragments were dropped.

   * scan6: Added support for 64-bit encoding of IPv4 addresses
     Option "--tgt-ipv4" was augmented to support both encodings (32 bit
     and 64 bit) of embedded IPv4 addresses.

   * tcp6: Fixed response to Neighbor Solicitations
     tcp6 was not responding to incomming Neighbor Solicitations. Hence, when
     packets were sent from spoofed addresses, tcp6 would never receive the
     response packets, because the NSs sent by the local router or target node
     would never be responded.

   * tcp6: Added support for TCP Window-based attacks
     tcp6 can now close the window after sending an app-layer command, and
     also "modulate" the TCP window to circumvent trivial mitigations \ 
for these
     attacks ("--window-mode" and "--win-modulate" options).

   * tcp6: Support for multiple connection-establishment types
     tcp6 can now cause e.g. TCP simultaneous opens (see the "--open-mode"
     option).

   * tcp6: Support for multiple connection-termination types
     tcp6 can now perform multiple connection-termination types (see the
     "--close-mode" option).

   * tcp6: Support for sending application layer requests
     tcp6 can now send application-layer requests with the "--data" option.

   * Many improvements to the manual pages.
     Fixed the troff encoding of many manual pages. Added ipv6toolkit(7), that
     describes a general description of the toolkit.

   * All: Fixed bug in link-layer destination address selection
     Tools now try to find a local router or perform Neighbor Discovery only
     when necessary (i.e., underlying link-layer is *not* loopback or tunnel,
     destination address is *not* link-local, and a link-layer destination
     address has *not* been specified).

   * All: Fixed bug in option handling
     Incorrect data type was used for the return value of getopt_long(), thus
     leading to problems in some architectures.

   * All: Fixed a number of issues with pcap_next_ex()
     The timeout parameter of pcap_next_ex() is now based on the platform (the
     previous constant value had different semantics in different platforms).
     Additionally, handle the case where pcap_next_ex() returns no packets.

   * All: General improvements and clean-up
     The development process now includes building the toolkit with the clang
     compiler (in addition to gcc), which has lead to the identification of a
     number of issues.

   * All: Improved support for building the toolkit.
     The toolkit now contains one makefile for pmake, and another for GNU make.
     Added support for the DESTDIR variable. Appropriate paths are selected
     based on the value of a number of variables. Configuration file is
     dynamically generated, with the right path to the oui.txt file.