Update S3 methods & exports.
Also remove untested weighted.var function
Remove old package suggestions
Extract out find_origin function
Add constructor for 2d fixed bins
Making summarise1d more consistent
Consist argument names between R & C++
Start to make C++ summary code dimension independent
Scaffolding for 2d grouper
Update docs
Introduce summarise2d.
Includes thorough bug fixing, checking, and thinking about how breaks work
Changes for debugging