PHLEGM v7 data-driven naming contract

<$project> = PHLEGM
<$version> = 7
<$proper> = Phlegmulator
<$credits> = Design: Tim Keal, Code: Ariel

Derived project/version directory: <$project> v<$version> => PHLEGM v7
Developer working directory: PHLEGM v7/
End-User archive root: PHLEGM v7/
Final live install directory: PHLEGM v7/

The shared three-script bootstrap expands these values from Install-and-Compile.json.
