Updates VSSDK version for Dev15.
Updates VSSDK version for Dev15.

huguesv/PTVS,DinoV/PTVS,int19h/PTVS,zooba/PTVS,Microsoft/PTVS,int19h/PTVS,DEVSENSE/PTVS,DinoV/PTVS,DEVSENSE/PTVS,DinoV/PTVS,int19h/PTVS,DEVSENSE/PTVS,DinoV/PTVS,Microsoft/PTVS,zooba/PTVS,DinoV/PTVS,huguesv/PTVS,Microsoft/PTVS,int19h/PTVS,huguesv/PTVS,zooba/PTVS,Microsoft/PTVS,huguesv/PTVS,zooba/PTVS,zooba/PTVS,Microsoft/PTVS,DinoV/PTVS,huguesv/PTVS,Microsoft/PTVS,int19h/PTVS,DEVSENSE/PTVS,DEVSENSE/PTVS,zooba/PTVS,DEVSENSE/PTVS,int19h/PTVS,huguesv/PTVS