While there, remove trailing whitespaces.
This fixes https://github.com/nplab/packetdrill/issues/33.

This fixes https://github.com/nplab/packetdrill/issues/5.

Please note that packetdrill currently does not support
getsockopt() for non int values.

This fixes https://github.com/nplab/packetdrill/issues/19

This fixes https://github.com/nplab/packetdrill/issues/18.

This patch add support for the PAD chunk and PAD parameter defined
in https://tools.ietf.org/html/rfc4820
This fixes https://github.com/nplab/packetdrill/issues/16

This patch adds support for the SCTP parameters defined in RFC 4960.
While there, make the syntax more consistent and make sure that
the packet printing is in line with the syntax being used.
This fixes https://github.com/nplab/packetdrill/issues/6

DATA[flgs=0x03 len=1016 tsn=0 ...
This fixes https://github.com/nplab/packetdrill/issues/3

flags as atwo digit hex number like DATA[flgs=0x03 tsn=0 ...
This addresses https://github.com/nplab/packetdrill/issues/2

SACK[tsn=2 gaps=[4:4, 6:6] dups=[8]]
This fixes https://github.com/nplab/packetdrill/issues/4

Current limitations:
* Chunk parameters are not yet supported.
* Error causes are not yet supported.
* Chunks can't be bundled with COOKIE-ECHO chunks.
* Chunk flags are not supported.
* Chunk lengths are not supported.
* Gap reports and duplicate TSNs are not supported for SACK chunks.
* SCTP related ICMP messages are not supported.
This version is only tested in a limited way, only on FreeBSD and
only in local mode.

This commit adds support for UDPLite as specified in RFC 3828
and the corresponding socket options.
It is tested on FreeBSD 10.1 and Linux, the platforms supporting
UDPLite.

Signed-off-by: Michael Tuexen <tuexen@fh-muenster.de>