Clarified in Javadoc that $snapshot only prevents duplicates.

    JAVA-1408
[JAVA-1482] Deprecate BSONByteBuffer.
[JAVA-1471] Deprecate BSONCallback.objectStart(boolean array)
Deprecated MongoException(BSONObject) constructor

   JAVA-1500
Fixed connection leak introduced by commit that introduced use of listIndexes and listCollections commands.

JAVA-1455
[JAVA-1453] Applied 3.0 updated documentation to 2.13 code
Create a collection to ensure a database is created