headers in a seperate include directory

I think the header files were moved by Alexander when he hooked up the
multi-target build (text/graphics/text+graphics). It probably eased
the way the includes path were hacked. 

I don't mind putting all this back the usual way, so I'm going to
proceed with the repo-copy you requested.

Sorry for delaying this again. ;)

A
-- 
From the age of uniformity, from the age of solitude, from the age of
Big Brother, from the age of doublethink - greetings!

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