issue 62: fix a few bugs in setup.sh
issue 62: fix a few bugs in setup.sh

SkySymbol/transvision,mozfr/transvision,flodolo/transvision,flodolo/transvision,flodolo/transvision,TheoChevalier/transvision,pascalchevrel/transvision,mozfr/transvision,SkySymbol/transvision,TheoChevalier/transvision,SkySymbol/transvision,mozfr/transvision,pascalchevrel/transvision,SkySymbol/transvision,pascalchevrel/transvision,mozfr/transvision,TheoChevalier/transvision,TheoChevalier/transvision,pascalchevrel/transvision,flodolo/transvision