update mongo driver to v4

Author: jclausen

models/Mongo/Collection.cfc

@@ -73,7 +73,7 @@ component name="MongoCollection" accessors="true" {
 	 * @param struct [criteria]	A criteria struct which restricts the counted document
 	 */
 	public function count( criteria = {} ){
-		return getDBCollection().count( getMongoUtil().toMongo( arguments.criteria ) );
+		return getDBCollection().countDocuments( getMongoUtil().toMongo( arguments.criteria ) );
 	}
 
 	/**

test-harness/tests/specs/integration/TestGEOEntity.cfc

@@ -73,9 +73,11 @@ component
 						expect( kent ).toBeComponent();
 
 						expect(
-							kent.whereNotI()
-								.near( "geometry", "this.geometry" )
-								.count()
+							arrayLen(
+								kent.whereNotI()
+									.near( "geometry", "this.geometry" )
+									.findAll()
+							)
 						).toBe( 3 );
 					} );
 				} );

test-harness/tests/specs/unit/testMongoUtil.cfc

@@ -43,7 +43,7 @@ component name="TestMongoUtil" extends="tests.specs.CBMongoDBBaseTest" {
 					var doc = MongoUtil.toMongoDocument( { "one" : 1, "two" : 2, "three" : 3 } );
 					variables.activeCollection.insertOne( doc );
 				}
-				expect( variables.activeCollection.count() ).toBe( 5 );
+				expect( variables.activeCollection.countDocuments() ).toBe( 5 );
 				describe( "Tests dbResult manipulation methods", function(){
 					it( "tests the encapsulateDBResult() method", function(){
 						var dbResult      = variables.activeCollection.find();