In CTest script, Disable CTEST_USE_LAUNCHERS for non Make generator
In CTest script, Disable CTEST_USE_LAUNCHERS for non Make generator

Doing so will allow build error to be properly reported for generator
that do not support CTest launcher

See #242

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