[#4256] Fix changelog

modified:   changelog_unreleased/4256-3-1-4-dhcpv6-client-classes-logical-expressions-in-ifelse-do-not-work

[#4256] Addressed more comments

changelog_unreleased/4256-3-1-4-dhcpv6-client-classes-logical-expressions-in-ifelse-do-not-work
src/lib/dhcpsrv/tests/client_class_def_unittest.cc

[#4256] Addressed review comments

    minor nits

[#4256] Detect template dependency on KNOWN

src/bin/dhcp4/tests/classify_unittest.cc
    TEST_F(ClassifyTest, templateDependOnKnown) - new test

/src/bin/dhcp6/tests/classify_unittest.cc
    TEST_F(ClassifyTest, templateDependOnKnown) - new test

/src/lib/dhcpsrv/parsers/client_class_def_parser.cc
    ClientClassDefParser::parse() - now detects and records
    template class dependency on KNOWN

/src/lib/dhcpsrv/tests/client_class_def_unittest.cc
    TEST(ClientClassDictionary, templateClassDependOnKnown) - new test

[#4256] Experiemental reversion

Revert to original logic in ClientClassDefParser to
see if any systems test fail.

[#4312] Typos fixed by Andrei

[#4305] Changlog indentation fixed

[#4254] Moved ChangeLog entry

[#4254] Update ext-radius.rst

[#4254] Added a ChangeLog entry

[#4254] Updated ARM

[#4312] Typo fixed

[#4312] Typo fixed

[#4312] Typo fixed

[#4312] release changes

[#4273] Disable fuzz jobs from appearing on MRs

[#4306] bump up library versions for 3.1.5 release

[#4311] Skip tests if socket name is too long

[#4308] fixed UB of try_lock on same thread

[#4296] Reformatted

[#4296] Added a ChangeLog entry too

[#4224] Update release_checklist.md

[#4246] Add cstdlib include to files using 'getenv|setenv|unsetenv'

[#3103] Added a ChangeLog entry

[#3103] Removed not implemented realm

[#4185] Added another drop stats

[#4185] Added some drop stats

[#4260] Addressed comments

[#4260] Added ChangeLog entry

[#4260] Checkpoint: ChangeLog to add

[#4282] Restored TSAN fix

[#4282] poll before reset

[#4282] fixed TSAN warning

[#4282] removed comment

[#4282] minor changes to comments

[#4282] Added doxygen comment

[#4282] Fixed TSAN reported issue

[#4282] Spelling

[#4282] Unified can't messages

[#4282] Addressed more comments

[#4282] More improvements

[#4282] Addressed first comments

[#4282] Added a ChangeLog entry

[#4282] Added back/front to add

[#4282] Added logs error responses

[#4282] Fixed messages

[#4282] Added 4xx error causes

[#4282] Checkpoint: RFC 5997 UTs

[#4282] Checkpoint: more UTs

[#4282] Checkpoint: doc and UTs

[#4282] Checkpoint: added idle timer

[#4282] Added Radius*Status classes

[#4282] Updated exhonerated list (2)

[#4282] Updated exhonerated list

[#4282] Checkpoint: add Status-Server

[#4288] Cut cycles in UTs

[#4147] Addressed comments

[#4147] Added a ChangeLog entry

[#4147] Added core dump doc

[#4232] clean up code

[#4232] Made fd event handler choice explicit

[#4232] Ported the poll.h include fix

[#4232] Missing poll UTs

[#4232] Finished poll UTs

[#4232] Checkpoint: added wrapper and updated compatible UTs

[#4258] Removed obsolete UT

[#4258] Changed ctor

[#4258] Removed chrono include

[#4258] Used an iterator argument

[#4258] Avoid copies

[#4258] Regen message files

[#4258] Added unbalanced logs

[#4258] Added multi-index

[#4265] Fixed bug and updated UTs

[#4295] Moved ChangeLog to unreleased

[#4295] added ChangeLog entry

[#4295] Added UTs

[#4295] Applied the patch

[#4288] Removed dangling comment

[#4288] Removed variants

[#4288] Checkpoint before removing variants

[#4288] Spelling

[#4288] More doxygen comments

[#4288] Began to address comments

[#4288] Made 1 litterals unsigned

[#4288] Updated redact code

[#4288] Revamped data.* code

[#4288] Made recursion limited

[#4264] Moved to system_timer

[#4266] Replaced BOOST_STATIC_ASSERT

[#4283] Addressed last comment

[#4283] Addressed some minor comments

[#4283] Added large UTs and reorg

[#4283] Checkpoint: added MT UTs

[#4283] Checkpoint: began UTs

[#4283] Checkpoint: to do UTs

[#4176] Address compiler warnings

modified:   src/hooks/dhcp/lease_cmds/lease_cmds.cc
modified:   src/lib/dhcpsrv/lease.cc
modified:   src/lib/dhcpsrv/lease_mgr.cc

[#4176] Fix change log indent.

modified:   4176-ha-lease-syncing-doesn-t-always-update-lease-stats

[#4176] Added ChangeLog entry

new file:   4176-ha-lease-syncing-doesn-t-always-update-lease-stats

[#4176] Further comments

modified:   src/lib/dhcpsrv/lease_mgr.cc
    LeaseMgr::updateStatsOnUpdate(const Lease4Ptr...)
        Do nothing if either lease state is REGISTERED

modified:   src/lib/dhcpsrv/testutils/generic_lease_mgr_unittest.cc
    Verify REGISTERED ignored for v4