Fixed some bugs which I mysteriously missed in the NTL-interface.
Fixed some bugs which I mysteriously missed in the NTL-interface.

jpflori/flint2,fredrik-johansson/flint2,fredrik-johansson/flint2,dsroche/flint2,jpflori/flint2,jpflori/flint2,wbhart/flint2,dsroche/flint2,fredrik-johansson/flint2,wbhart/flint2,dsroche/flint2,wbhart/flint2,dsroche/flint2,jpflori/flint2