move implementation from IndexedList to List
fix output of 'blankSeparate'
simplify square root in 'radicalSolve' of quadratic equations
remove unused 'mapSolve'
add hashUpdate! to InnerIndexedTwoDimensionalArray
fix )abbrev from domain to package
Fix bug in '*' and 'gcd' in Factored
Whitespace cleanup
Fix input form of formal derivatives
fix fix usage of insert! and remove!