Make the GSA Octave-compatible
In particular, the call to 'waitbar' in 'gsa/stab_map.m' should be replaced by a printf-based bar like in the estimation code.
The test files under tests/gsa should also be added to the testsuite.
In particular, the call to 'waitbar' in 'gsa/stab_map.m' should be replaced by a printf-based bar like in the estimation code.
The test files under tests/gsa should also be added to the testsuite.