Add NumForm to a bunch of NumType=Ord words.

[AngledLuffa]

Addresses #28

Done with the following Ssurgeon script, although it relies on a couple unreleased features:

# being lazy: first update everything to Combi,
# then update the letter only ones to Word
{word:/^[0-9a-zA-Z]+$/;morphofeatures:/^.*NumType=Ord.*$/}=number
EditNode -node number -updateMorphoFeatures NumForm=Combi

{word:/^[a-zA-Z]+$/;morphofeatures:/^.*NumType=Ord.*$/}=number
EditNode -node number -updateMorphoFeatures NumForm=Word

[dan-zeman]

Looks good to me.