fixed segmentation fault for denominator of zero rational function
Better denominator for trans. field ext.
Flint Fix
Better FLINT-discover fix
Changed configure-scripts to generate individual public config files for each package: resources, libpolys, singular (main)

fix: sources should include correct corresponding config headers.
Added a listing of built-in modules (in the output of `Singular -v`)
Minor improvement to git-version-gen
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