This is where old scripts go to work on all the projects they wanted
to do all their lives, but never had time due to kids and career.

## 4d-reset-matches-ned1.py

   start with all the original pair-wise matches, assemble them into a
   unified match structure and estimate their 3d location. (earlier
   revision.)

## 4d-reset-matches-ned2.py

   start with all the original pair-wise matches, assemble them into a
   unified match structure and estimate their 3d
   location. (intermediate revision.)


Add some notes on what is in here.
Add some notes on what is in here.
