Add MungoCollection to replace DBCollection codes
Collections update
Add repackaged org.bson classes to support proper parsing of JSON to
DBObject
Update query, increment, decrement, set, unset, prefix and suffix
Fetch query result(s) "as" pojo
Refactor
Rename MungoCollection to DBCollection, replacing the "old" DBCollection
Call right query method when sort is null. Fix datastore key name
generation from Object.
Move test models
Replaced new DBCursor with new implementation