[Replicant] [vendor_replicant-scripts] Build system and documentation fixes

[Denis 'GNUtoo' Carikli]

Hi,

In addition to the patches that will follow in a response to
this mail, here's an URL to the see the patches in a web interface:
https://git.replicant.us/contrib/GNUtoo/vendor_replicant-scripts/commit/?id=c0282ce6474d524fe9bbf74df96c3944de22b52b

And here's how to get them in a git repository:
git clone https://git.replicant.us/GNUtoo/vendor_replicant-scripts
cd vendor_replicant-scripts
git show c0282ce6474d524fe9bbf74df96c3944de22b52b

Denis.