Enable CTEST_USE_LAUNCHERS only if CMake generator is Makefile based
Enable CTEST_USE_LAUNCHERS only if CMake generator is Makefile based

sankhesh/CTK,lassoan/CTK,Heather/CTK,danielknorr/CTK,Heather/CTK,fedorov/CTK,naucoin/CTK,Sardge/CTK,SINTEFMedtek/CTK,ddao/CTK,sankhesh/CTK,fedorov/CTK,151706061/CTK,danielknorr/CTK,AndreasFetzer/CTK,jcfr/CTK,laurennlam/CTK,espakm/CTK,rkhlebnikov/CTK,finetjul/CTK,151706061/CTK,rkhlebnikov/CTK,Sardge/CTK,msmolens/CTK,SINTEFMedtek/CTK,naucoin/CTK,commontk/CTK,mehrtash/CTK,AndreasFetzer/CTK,ddao/CTK,sankhesh/CTK,msmolens/CTK,mehrtash/CTK,sankhesh/CTK,jcfr/CTK,espakm/CTK,AndreasFetzer/CTK,danielknorr/CTK,SINTEFMedtek/CTK,msmolens/CTK,rkhlebnikov/CTK,finetjul/CTK,vovythevov/CTK,msmolens/CTK,Heather/CTK,fedorov/CTK,CJGoch/CTK,pieper/CTK,Sardge/CTK,espakm/CTK,pieper/CTK,CJGoch/CTK,danielknorr/CTK,151706061/CTK,vovythevov/CTK,lassoan/CTK,ddao/CTK,commontk/CTK,mehrtash/CTK,naucoin/CTK,AndreasFetzer/CTK,laurennlam/CTK,jcfr/CTK,CJGoch/CTK,vovythevov/CTK,lassoan/CTK,naucoin/CTK,commontk/CTK,laurennlam/CTK,SINTEFMedtek/CTK,151706061/CTK,finetjul/CTK,pieper/CTK,jcfr/CTK,SINTEFMedtek/CTK,jcfr/CTK,finetjul/CTK,commontk/CTK,espakm/CTK,151706061/CTK,laurennlam/CTK,Heather/CTK,lassoan/CTK,pieper/CTK,Sardge/CTK,CJGoch/CTK,rkhlebnikov/CTK,mehrtash/CTK,ddao/CTK,fedorov/CTK,vovythevov/CTK,CJGoch/CTK