Update version to 2.0DB016

Fix BasicAuthenticator not working

Fixed the authentication type.

Create CBLQueryResultArray to serve allObjects value

* Changed CBLQueryResultsArray to CBLQueryRowsArray. This is currently used by the PredicateQuery.

* Implemented the same for the regular Query and named it CBLQueryResultArray. The reason to implement a new one instead of trying to use the same one is to clearly separate PredicateQuery and Query for now.

Fix conflicting base is not null when there is no base

Currently the base is an empty doc instead of null when there is no base document. This is fixed by checking if the base c4doc is null or not, if it’s null, the base document should be null.

couchbase#1835

Update version number to 2.0DB012

Mark LiveQuery.addChangeListener @discardableResult

As the returned result is not always required, make the method as discardableResult.

Update version number to 2.0DB010

Update version to 2.0DB009

Fix .continuos not getting copied

Fix CBForest XCode build error

Used the fixed from release/1.4.0.1-ios branch.