new assignments

[William la Forge]

Alex,

I will continue to work with btrees until they work a lot better than they do now.

Naji will be enhancing operations and otherwise restricting the API of rolons.

Barrie's time is, as usual, constrained.

I do have an interesting job for you to work on, extending the sequence classes. But before starting that I need you to do the unit tests for those classes. OK?

Bill