4caa4abaa30d3bef9de8f523e9374fa2208cdb4b Bugfixes for OSR

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 203 | PASS: 201 | FAIL: 1 | XFAIL: 1 | XPASS: 0 | LIST OF FAILED TESTS: | * gsa/ls2003.mod

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 201 | PASS: 197 | FAIL: 3 | XFAIL: 1 | XPASS: 0 | LIST OF FAILED TESTS: | * gsa/ls2003.mod | * stochastic_purely_forward/stochastic_purely_forward.mod | * stochastic_purely_forward/stochastic_purely_forward_with_static.mod

A full log can be found on karaba in '/tmp/dynare-master-check-ZHW6js9MWh.log'.