Modernize the CMakefile
Modernize the CMakefile

The old crufty CMake was causing bug #3092 to happen

AmeBel/opencog,andre-senna/opencog,andre-senna/opencog,andre-senna/opencog,AmeBel/opencog,AmeBel/opencog,AmeBel/opencog,AmeBel/opencog,andre-senna/opencog,andre-senna/opencog,andre-senna/opencog,AmeBel/opencog,andre-senna/opencog,AmeBel/opencog