updating mongodb interface for 2.2: - update to mongodb-c-driver 1.11.0 - reduce number of calls to deprecated driver functions as far as possible - improve cleanness of compilation (provde prototypes etc.) - bump version number to 2.2
- add NsfArgumentError() to stub interface, since this might be used by c packages using the interface generator - add mong::json to the interface - bump version number for mongo interface to 0.4.