> Steve, I really think we should postpone to 3.7. [...]

If these fixes have to be in by the next beta (10th Oct), I fear that 
you are right. I can build up to changeset 103135:8b74e5528f35, but not 
beyond. I will be able to rectify that, but realistically it won't be 
before beta2.

I expect that harmonic_mean is okay to stay in though?

I feel frustrated at how close to complete geometric_mean is, 
disappointed that I can't work on it at the moment, and embarrassed that 
I'm letting the team down. Sorry for the extra work I've put you 
through.

I can do the removals -- probably tonight.