Added MongoTailableCursor Interface

Synchronous QueryOperation operations now return a tailable cursor
Use SecureRandom for SCRAM-SHA1

JAVA-1424
Removed unused package-private method in Mongo class
Removed unused query encoder from UpdateCommandProtocol constructor
WIP: New CRUD API
JAVA-1215: WIP
JAVA-1215: Renamed QueryFlag to CursorFlag.  Added it to FindModel
JAVA-1215: WIP for QueryOperation
JAVA-1215: Starting on generic models with FindModel<T>
JAVA-1215: Generified all the models
JAVA-1215: Added findAndModify-related models and methods
JAVA-1215: Removing Find from QueryOperation
JAVA-1215: Updated FindModel and QueryOperation to use primitive number types, to avoid rampant NPE possibilities
JAVA-1215: Replaced use of Find in DBCursor with FindModel
JAVA-1215: Defined properties on CountOperation in preference to passing in instance of Find
JAVA-1215: Added generic method type
JAVA-1215: Suppressed warnings in test class
JAVA-1215: Reorganized methods in CountModel
JAVA-1215: Replaced use of Find in DistinctOperation with properties
JAVA-1215: Got rid of last remaining use of Find class