CXX Usability improvements

Summary

A collection of usability improvements, including simpler BSON construction and usage, a clearer exception hierarchy, API improvements, and better documentation.

Motivation

These improvements have come from internal requests (from developers working on Genny) and user reports. 

Cast of Characters

• Product Owner:
• Project Lead:
• Program Manager:
• Drivers Contact:

Documentation

[Scope Document|]
[Technical Design Document|]