Update Makefile #854
Description
-
make cleanshould also remove thevenv(see Updatevenvandcleanmake targets #856) -
make clean-venvshould be added to only remove thevenv(see Updatevenvandcleanmake targets #856) -
make checkshould check for the default role (see Use sphinx-lint inmake check. #866) -
make htmlviewshould be added (see bpo-36329: Replace 'make serve' with 'make htmlview' #826) -
make venvshouldn't print when called by other targets (see Only printmake venvmessage when needed. #867)