Add handling of fragments on v4->v6 path
Trigger IPv6 fragment header only on IPv4 fragments
Check the LSB of IPv6 prefix not on the byte boundary against the MAP domain when translating
Delete two unnecessary FIXMEs: the code they are wanting is extraneous.
Correct MTU in ICMPv4 type 3 code 4 message upward to 1280 if it is less
Remove unused variable
Fix a warning about incorrect function declaration and a mix of variable declaration within the code
Remove the embryonic code related to rfc4884 support - we do not need it, at least for now
Get rid of magic numbers
Remove FIXME that are not FIXMEs: about PSID verification, and about already implemented code