Fix up Ticket #4504 implementation. Match config style with other areas. Use a config setting to disable, rather than enable, this functionality since it's enabled by default so the tag isn't necessary in the default config. Remove now unnecessary config upgrade code.
Remove array_intersect_key here too, definitely not needed. add to obsoletedfiles
There is no longer any need to restrict protocols for IPv4+IPv6 rules, the appropriate ruleset is generated and problem scenarios that would otherwise break here are prevented by other input validation.
remove dead code, clean up excess white space a bit.
Fixes #4504 use correct key index
Fixes #4504 Allow the bypass policy for LAN to be enabled and prevent traffic sent to lan ip to go to the ipsec tunnel
Fixes #4259 Use proper variable to do calculations
Add SCTP to protocol list for filtering.
Merge manually pull request #1593
Fix encoding issues in Configuration History list.
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