CBL-5661 : Fix a released captured context may be used in observer ca…

…llback (#532)

* Implemented ContextManager class for retaining and mapping callback context objects with their pointer value. When getting the object back, the retained object will be returned so the object can be safely used in the callback.

* Updated ListenerToken<CBLQueryChangeListener> to use ContextManager for it’s C4QueryObserver’s callback lamda so that the callback can validate and safely use its captured context.

* Added CBLQuery_SetListenerCallbackDelay() private API for testing the fix.

* Updated LiteCore to 3.1.7-1 to get the fix for CBSE-16662.

Update LiteCore to 3.1.6-6 (#523)

Update LiteCore to 3.1.3-4 (#510)

Enable verbose log in flaky tests (#509)

Enabled verbose log in “Close Database with Active Replicator” and “Delete Database with Active Replicator” which currently failed on Debian 10 platform.

Update LiteCore to 3.1.1-10 (#496)

Update LiteCore to 3.0.12-17 (#489)

Update LiteCore to 3.1.0-356 (#475)

CBL-4201 : Fix incorrect User-Agent key (#452)

The key is set to “kCBLReplicatorUserAgent” which is wrong. It needs to be “User-Agent”.

Update LiteCore (#390)

For CBL-3831, CBL-3833, CBL3704, CBL-3841

Update version number in xcconfig to 3.0.3