Bind layer PPP with IPv6 (fixes #5143)

Do not run `.post_build()` when using `.raw_packet_cache` (OK Guillaume Valadon)

Fix IPv6 random addresses (thanks Guillaume Valadon!)

added documentation for send() and sendp()

Fixes #5131

added documentation for send() and sendp(), when return_packets is set to true, it will return a PacketList().

--HG--
branch : issue_5142

send and sendp can return sent packets. Fixes #5122.

--HG--
branch : issue_5122

--HG--
branch : issue_5122

Add support for SPBM (Shortest Path Bridging)

Issue #5141 fixing a bug in the checksum routine for Cisco Discovery Protocol

--HG--
branch : issue_5141

--HG--
branch : issue_5141

--HG--
branch : issue_5141

SetGen is broken for custom list classes as illustrated by the following
example:

    >>> packet = Ether() / IP()
    >>> packet_list = [packet, packet]
    >>> sendp(packet_list)
    ..
    Sent 2 packets.
    >>> # Now let's do the same with a custom class
    >>> class MyList(list): pass
    ...
    >>> weird_packet_list = MyList(packet_list)
    >>> len(weird_packet_list)
    2
    >>> sendp(weird_packet_list)
    .
    Sent 1 packets.
    >>> # Only one packet is sent instead of two.
    >>> # This is due to SetGen using type() instead of insinstance() to check
    >>> # the nature of the arguments. Indeed:
    >>> type(weird_packet_list)
    <class 'scapy.all.MyList'>
    >>> isinstance(weird_packet_list, list)
    True

--HG--
extra : rebase_source : aeb2b7bd46f3cb4cf0491bbea4a38157e93ecb71

Support for arm64

--HG--
branch : Issue #5130

Close pcap files in .__exit__() (fixes #5126)

IS-IS / CLNS improvements

Spelling fixes in documentation

CHANGE: made IS-IS more PEP-8 compliant

Add missing socket.IPPROTO_IPIP

--HG--
branch : issue-5126

In bug report https://bitbucket.org/secdev/scapy/issue/5119
it is stated that Solaris has no IPPROTO_IPIP.
The same holds true on windows platform.
Add (monkey patch) missing attribute.
Reference: http://en.wikipedia.org/wiki/List_of_IP_protocol_numbers

--HG--
branch : missing_ipip

--HG--
branch : missing_ipip

Issue #5116 fixed

Changed RTP field name from `payload` to `payload_type`

Fixes the _write_header() call to make it possible to write from a generator

HomePlugAV PLC layer