Added differentiation of coefficients in transcendental extensions
fixed problem of diff with cancellation of rational function NULL
Added first version of new library on Gromov-Witten invariants of elliptic curves
New version of ellipticCovers.lib
New version of ellipticCovers, renamed to ellipticcovers
Changes to ntDiff
added documentation for differentiation of rational functions
minor changes with respect to ntDiff
minor changes with respect to ntDiff
Merge pull request #355 from jankoboehm/spielwiese

Changes/additions to transext.cc

TODO: add tests for all the new features