scilab: in configure.ac SCILABSTARTOPT => SCILABOPT
scilab: SWIG_AsValDouble relies on SWIG_SciDouble_AsDouble
scilab: in test-suite makefile SCILAB_STARTOPT => SCILAB_OPT
scilab: support of Scilab 6: gateway signatures
scilab: simplify version check and fix for scilab 6
scilab: update .gitignore for scilab 6
scilab: update makefile for scilab 6
scilab: for scilab 6, cannot pass API pointer everywhere in SWIG, use global pointer for now
scilab: fix test abstract_signature (scilab 6)
scilab: fix setApiContext macro for Scilab 5
scilab: fix test bools (scilab 6)
scilab: fix Scilab variable creation for scilab 6
scilab: fix li_std_container_typemaps test for scilab 6
scilab: fix allprotected test (scilab 6)