fix some zerogens and size(ideal) issues in primdecint.lib
bugfix : removing using ncols mistake
Merge remote-tracking branch 'origin/spielwiese' into pure.fix.zerogens.and.size.misusage.in.primdecint.lib
merged with pure.fix.zerogens.and.size.misusage.in.primdecint.lib
Merge branch 'spielwiese.patched' of https://github.com/surface-smoothers/Sources into spielwiese.patched