NXP-14826: Use auto-incremented event log id instead of event log date to ensure a consistent change summary (no missing events)

Conflicts:

	nuxeo-drive-client/doc/manual_init.md
	nuxeo-drive-client/nxdrive/client/remote_file_system_client.py
	nuxeo-drive-client/nxdrive/model.py
	nuxeo-drive-server/nuxeo-drive-core/src/test/java/org/nuxeo/drive/service/TestAuditFileSystemChangeFinder.java
	nuxeo-drive-server/nuxeo-drive-operations/src/test/java/org/nuxeo/drive/hierarchy/permission/TestPermissionHierarchyFileSystemChanges.java
	nuxeo-drive-server/nuxeo-drive-operations/src/test/java/org/nuxeo/drive/operations/TestGetChangeSummary.java
NXP-14826: Remove all Thread.sleep() introduced by NXP-11964 and NXP-13811

Conflicts:

	nuxeo-drive-server/nuxeo-drive-core/src/test/java/org/nuxeo/drive/service/TestAuditFileSystemChangeFinder.java
NXP-14826: Remove all occurrences of time.sleep(self.AUDIT_CHANGE_FINDER_TIME_RESOLUTION)

Conflicts:

	nuxeo-drive-client/nxdrive/tests/test_integration_concurrent_synchronization.py
	nuxeo-drive-client/nxdrive/tests/test_integration_encoding.py
	nuxeo-drive-client/nxdrive/tests/test_integration_remote_move_and_rename.py
	nuxeo-drive-client/nxdrive/tests/test_integration_synchronization.py
NXP-14826: Handle backward compatibility

Conflicts:

	nuxeo-drive-client/nxdrive/client/remote_file_system_client.py
NXP-14826: Make 5.6.0 branch compile