b9e0017b61cd66541f4a243aa1c2edcca7aefef1 Bug fixed for incomplete stock matrices of log-posterior kernel and steady state [used in gsa/filt_mc_.m]

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 439 | PASS: 437 | FAIL: 0 | XFAIL: 2 | XPASS: 0

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 433 | PASS: 431 | FAIL: 0 | XFAIL: 2 | XPASS: 0

A full log can be found on karaba in '/tmp/dynare-4.4-check-MOP4cfaeEo.log'.