Default to killing process on exit
Default to killing process on exit

Also adds support for capitalization variants of "no" to not kill
process.

visualfc/delve,sinuos/delve,lukehoban/delve,beni55/delve,glycerine/delve,dullgiulio/delve,skyportsystems/delve,dr2chase/delve,visualfc/delve,w4ngyi/delve,ignatov/delve,joeshaw/delve,jeffallen/delve,dlsniper/delve,dr2chase/delve,beni55/delve,go-delve/delve,firebitsbr/delve,jeff235255/delve,sinuos/delve,lukehoban/delve,dr2chase/delve,go-delve/delve,go-delve/delve,torfuzx/delve,aarzilli/delve,go-delve/delve,waterway/delve,derekparker/delve,ggndnn/delve,alexbrainman/delve,w4ngyi/delve,firebitsbr/delve,go-delve/delve,ironcladlou/delve,ggndnn/delve,aarzilli/delve,torfuzx/delve,ignatov/delve,yigen520/delve,skyportsystems/delve,dullgiulio/delve,aarzilli/delve,derekparker/delve,jeffallen/delve,jeff235255/delve,ironcladlou/delve,alexbrainman/delve,tylerb/delve,derekparker/delve,waterway/delve,yigen520/delve,aperera/delve,aperera/delve,aarzilli/delve,dlsniper/delve,ggndnn/delve,glycerine/delve,tylerb/delve,visualfc/delve,joeshaw/delve,dlsniper/delve,ignatov/delve,alexbrainman/delve