Use mayor version only default path of Win installer
Use mayor version only default path of Win installer

Changes in minor/patch version will upgrade OSPRay, thus the version in
the path won't match the installed version after update anymore.

ospray/OSPRay,wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,ospray/OSPRay,wilsonCernWq/ospray