3f68450d5133750356352569264b765e1a2b9d53 osr: add option opt_algo. #779

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 494 | PASS: 487 | FAIL: 4 | XFAIL: 3 | XPASS: 0 | LIST OF FAILED TESTS: | * simul/Solow_no_varexo.mod | * ep/rbc.mod | * ep/rbcii.mod | * deterministic_simulations/homotopy.mod

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 488 | PASS: 477 | FAIL: 8 | XFAIL: 3 | XPASS: 0 | LIST OF FAILED TESTS: | * identification/kim/kim2.mod | * identification/as2007/as2007.mod | * simul/Solow_no_varexo.mod | * ep/rbc.mod | * ep/rbcii.mod | * deterministic_simulations/homotopy.mod | * ../matlab/@dseries/detrend.m#1 | * ../matlab/lyapunov_symm.m#1

A full log can be found on karaba in '/tmp/dynare-master-check-oTCWgps6He.log'.