Allow one to send the TCP User Timeout Option described in RFC 5482 in
a crafted TCP segment.

Move the Pcap/PcapNg detection from rdpcap to (Raw)PcapReader

Remove unneeded tests

Reported by Aaron Wood on Scapy ML.

This does not change the use of rdpcap() with both formats, and allows
using (Raw)PcapReader() against a PcapNg files.

Multiple ASN.1 enhancements ; X.509 comprehensive support 

Insert DER test data inside x509.uts and move it from scapy/layers/ to test/ (also, remove obsolete X.509 tests from test/regression.uts

Heavy modifications to x509.py : comprehensive support for many more fields, extensions and keys (both RSA and ECDSA)

Heavy modifications to asn1fields.py : proper and exhaustive support for ASN1 objects as fields (SEQUENCE, CHOICE, _optional, etc.)

Add implicit/explicit tagging support ; add high-tag number support ; add more proper BER bit string encoding/decoding

Implement a binrepr() function working with both Python 2.5 and 2.6+

Implementation of IPv6 ND attacks described in RFC 3756

various IPv6 Neighbor Discovery attacks referenced in RFC 3756 (IPv6
Neighbor Discovery (ND) Trust Models and Threats). Integration work in
recent version and associated tests done by Guillaume!

Fix Net6.__repr__()

0b0000 is not supported in Python 2.5