package name change

Alas, no one stood up for pydong, and Hamish Lawson's zip-file hack
for Windows was persuasive, so the new package name is "pydo"; the
requisite changes are now checked in.  

There is also a new function, "fetch", that enables you to get
multiple PyDO objects at once, a la the old scatterfetch, and also to
use just about whatever arbitrary sql you want.  It gives you enough
rope to shoot yourself in the foot.  Because it is such a general
facility, I think it should supplant arrayfetch and my half-hearted
attempt at modelling joins.  Would anyone weep if they fell under the
axe?  Does fetch seem useful?  Suggestions, arguments welcomed.

j

-- 
Jacob Smullyan

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