Quick fix in GIV : identical(as.vector(M[["parm"]]), IV) is unsatisfecible

The aforementioned test happens three times in GIV. Since I do not know
exactly why this test fails, i forced tjhe convesion of IV to a vector.

NB : I did not (yet) credit myself for that fix, but I changed the
DESCRIPTION file to allow detection.
Typo in DESCRIPTION.