Btw, note that the grunt script does _not_ modify `src/config.json` afaik -- the "Update config.json ..." task you've patched below only updates the build-output copy of that file, `dist/config.json`.  I don't think we should have the build script modify the original `src/` copy (especially for what's being described here -- no build timestamp will be an accurate representation of what version of the code is running when you're in a dev setup; that's why the build number is always shown as .0 too).