Release 1.6.0

This release adds a new SQL function for masking addresses and adds support for Pcap's LINUX_SLL link layer.

Packages: https://dev.dns-oarc.net/packages/

The new netmask() function (added by Ken Renard @kdrenard) is used as follows: NETMASK(address [, v4_mask_length [, v6_mask_length]])

Other fixes:

• packet_handler: Clean up header parsing, size checks etc
• Remove own defines of ether/proto types and don't overlap struct in6_addr

ae211e6 LINUX_SLL, netmask(), ether types
d847c97 Adding Netmask description to FUNCTIONS.md
4be804d Adding Netmask function. Usage "netmask (<address_field>[, [, ]])"