Issue #68: added support to setup.py for CMAKE_INSTALL_PREFIX (i.e. when installing GiftGrab to non-system folder, e.g. to avoid root access)
Issue #68: added support to setup.py for CMAKE_INSTALL_PREFIX (i.e. when installing GiftGrab to non-system folder, e.g. to avoid root access)

gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab