MongoDB Ruby Driver v1.3.0

• Add option to set timeouts on socket read calls using the
  Mongo::Connection :op_timeout option.
• Add StringIO methods to GridIO objects
• Support for BSON timestamp type with BSON::Timestamp
• Change the BSON binary subtype from 2 to 0
• Remove private method Connection#reset_conection
  and deprecate public method ReplSetConnection#reset_connection
• ByteBuffer#== and OrderedHash#dup (Hongli Lai)
• Better check for UTF8 validity in Ruby 1.9
• Added previously removed Connection#host and Connection#port
• Added transformers to allow Mongo::Cursor to allow instantiated objects (John Nunemaker)
• Automated reconnection on fork
• Added Cursor#next alias for Cursor#next_document
• Audit tests after enabling warnings (Wojciech Piekutowski)
• Various bug fixes thanks to Datanoise, Hongli Lai, and Mauro Pompilio