[Axiom-developer] mathml fixes

[Arthur Ralfs]

Tim,

I have some fixes for mathml to deal with the issues concerning
sums and products that Martin brought to my attention.  I downloaded
mathml.spad.pamphlet from the silver repository today so as to make
sure I submit a clean patch.  I noticed that there are a number of minor
differences between what you currently have in silver and what I'm
working on.  Do you want me to synchronize completely with the silver
version or just submit a patch for the sums and products things?

Arthur