This one contains only a few CVEs + bugfixes.
* CVE-2019-8381 memory access in do_checksum() (#538)
* CVE-2019-8376 NULL pointer dereference get_layer4_v6() (#537)
* CVE-2019-8377 NULL pointer dereference get_ipv6_l4proto() (#536)
* Rename Ethereal to Wireshark (#545)
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>