Release notes re channels (aeternity#2496)

Move channels release notes to main file

Merge pull request aeternity#2461 from aeternity/PT-166184378-db-sc-f…

…p-test

Test loading old force progress tx

Merge pull request aeternity#2458 from aeternity/PT-2152594-enhance_s…

…moke_test

Fix Windows packaging

Support `+` sign in tag names (aeternity#2447)

Allow dots in prelease identifiers (aeternity#2444)

Merge pull request aeternity#2340 from aeternity/165141235_fix_system…

…d_node_restart_on_failure

PT165141235: Fix systemd restart on failure issues with aeternity-node (in Ubuntu package)

Add release artifacts validation script (aeternity#2327)

Merge pull request aeternity#2301 from aeternity/PT-164199963-release…

…-notes

Release notes

Mention installer migration in the release notes (aeternity#2257)

Merge pull request aeternity#2227 from aeternity/PT-164430876-keep-tx…

…-pool-gc-state

Move ownership of gc db to aec_tx_pool for state consistency