* agent: remove service queue association when service ID changed
* agent: process ENDS event
* agent: send service subscription error event
* agent: test migrating to/from service subscriptions, fixes
* agent: always remove service when disabled, fix service subscriptions
* servers: maintain xor-hash of all associated queue IDs in PostgreSQL (#1615)
* ntf server: maintain xor-hash of all associated queue IDs via PostgreSQL triggers
* smp server: xor hash with triggers
* fix sql and using pgcrypto extension in tests
* track counts and hashes in smp/ntf servers via triggers, smp server stats for service subscription, update SMP protocol to pass expected count and hash in SSUB/NSSUB commands
* agent migrations with functions/triggers
* remove agent triggers
* try tracking service subs in the agent (WIP, does not compile)
* Revert "try tracking service subs in the agent (WIP, does not compile)"
This reverts commit 59e908100d.
* comment
* agent database triggers
* service subscriptions in the client
* test / fix client services
* update schema
* fix postgres migration
* update schema
* move schema test to the end
* use static function with SQLite to avoid dynamic wrapper
* agent: support client notices
* improve
* fix, test
* rename
* cleanup
* send and process notices in more cases
* dont delete
* dont remove notice on other permanent errors
* dont remove notice if there is no notice ID in queue
* add server to error
* allow deleting
* only use notice if key hash matches
* agent: optimize subscriptions memory usage more (do not store subscribed queues in memory) WIP
* use new session subscriptions data
* version
* remove old data structure
* remove version
* batch deletions
* test TSessionSubs
* comment
Evgeny