Change signature of 'split!'
Add subSylvesterMatrix, subResultant, subResultantList
Move *trim from StringAggregate to LinearAggregate
Cleanups and improvements
More efficient 'pseudoQuotient' in UPOLYC
Simplify 'pseudoRemainder' and 'pseudoDivide'
Avoid duplication of 'fmecg' and 'pomopo!'
Remove some Lisp calls
Fix output of matrices with 0 rows
Fix countRealRoots