* Implement KVCompareAndDelete and KVCompareAndDeleteJSON
* Add tests for KVCompareAndDelete
* Update minimum server version
* Handle nil value on CompareAndSet so that it deletes it
* Fix comments
* Tweaks from PR comments
* Go back to deleted, err
* MM-14246 - Plugin framework: support transactional semantics with KV Store
Rename old, new variable names
Moving New function to the bottom
* Made CompareAndUpdate sync, updated tests
* Removed going through channel in CompareAndSetPluginKey
* Inserting new key when oldValue is nil to KVCompareAndSet
* Updated error text to include CompareAndSet
Expire K/V Values
Regenerate Code
pathfix
Update Expiry on Update
Check for Exit Signal
gofmt
Rewrote Go Routine
Remove tempoarily cleanup loop
fix expiretime
TEST: Expired Watchdog as GoRoutine
Check if Srv is nil
Use Scheduler/Worker for Expired Key CleanUp
add license
fix scheduler job type; DoJob Restructuring
Remove unused imports and constants
move db migration from 5.4 to 5.5
