PHPLIB-547: Fix links to new enumeration methods

Author: jmikola

source/reference/class/MongoDBClient.txt

@@ -37,6 +37,7 @@ Methods
    /reference/method/MongoDBClient-getReadPreference
    /reference/method/MongoDBClient-getTypeMap
    /reference/method/MongoDBClient-getWriteConcern
+   /reference/method/MongoDBClient-listDatabaseNames
    /reference/method/MongoDBClient-listDatabases
    /reference/method/MongoDBClient-selectCollection
    /reference/method/MongoDBClient-selectDatabase

source/reference/class/MongoDBDatabase.txt

@@ -56,6 +56,7 @@ Methods
    /reference/method/MongoDBDatabase-getReadPreference
    /reference/method/MongoDBDatabase-getTypeMap
    /reference/method/MongoDBDatabase-getWriteConcern
+   /reference/method/MongoDBDatabase-listCollectionNames
    /reference/method/MongoDBDatabase-listCollections
    /reference/method/MongoDBDatabase-modifyCollection
    /reference/method/MongoDBDatabase-selectCollection

source/reference/method/MongoDBClient-listDatabaseNames.txt

@@ -67,7 +67,7 @@ The output would then resemble::
 See Also
 --------
 
-- :phpmethod:`MongoDB\\Database::listDatabases()`
+- :phpmethod:`MongoDB\\Client::listDatabases()`
 - :manual:`listDatabases </reference/command/listDatabases>` command reference
   in the MongoDB manual
 - `Enumerating Databases

source/reference/method/MongoDBClient-listDatabases.txt

@@ -80,7 +80,7 @@ The output would then resemble::
 See Also
 --------
 
-- :phpmethod:`MongoDB\\Database::listDatabaseNames()`
+- :phpmethod:`MongoDB\\Client::listDatabaseNames()`
 - :manual:`listDatabases </reference/command/listDatabases>` command reference
   in the MongoDB manual
 - `Enumerating Databases