on make_tests:  * fix launch from another directory  * add option to use absolute paths if launched as absolute
on make_tests:
 * fix launch from another directory
 * add option to use absolute paths if launched as absolute

aymanelyaagoubi/gpac,rbouqueau/gpac,gpac/gpac,rbouqueau/gpac,gpac/gpac,gpac/gpac,RodolpheFouquet/gpac,aymanelyaagoubi/gpac,ARSekkat/gpac,porcelijn/gpac,aymanelyaagoubi/gpac,aymanelyaagoubi/gpac,porcelijn/gpac,porcelijn/gpac,porcelijn/gpac,rbouqueau/gpac,ARSekkat/gpac,rbouqueau/gpac,ARSekkat/gpac,gpac/gpac,RodolpheFouquet/gpac,aymanelyaagoubi/gpac,rbouqueau/gpac,gpac/gpac,gpac/gpac,ARSekkat/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,gpac/gpac,RodolpheFouquet/gpac,porcelijn/gpac,gpac/gpac,rbouqueau/gpac,rbouqueau/gpac,aymanelyaagoubi/gpac,ARSekkat/gpac,RodolpheFouquet/gpac,porcelijn/gpac,RodolpheFouquet/gpac,ARSekkat/gpac