pfister: bug in zeroRad fixed

from spielwiese
update for NTL 6
update for NTL 6
add: template instantiation for NTL 6
fix: typo
fix: removed debug output
chg: new version of grobcov.lib
fix: tr. #490 (missing kMergeBintoL in enterpairsSpecial)
chg: new version of schubert.lib
fix: changes for xmalloc
fix: mapping of ring-indep. list
fix: xmalloc changes
fix: compiler warnings
fix: avoid omSizeWOfAddr
chg: rewrote convex dense compression with mpz_t
chg: deleted unused code
chg: changes due to rewritting