Rename PolynomialIdeals to PolynomialIdeal
Add derivatives of Airy functions and Lambert W.
make ATANFLAG into a union type and correct bug (typo) in fs2expxp.
Exhibit failure in RECOP.
Allow application of operators to up to 9 arguments.
Fix problem in remove__denoms.
remove wrong reference to mantepse and exposure of RECOP.
Set 1.1.0 version number.
Create 1.1.0 release branch.
Update release notes.