* The merged contents file didn't work out, so nuke it and put it back
into each port directory. Most still have the now-pointless conditionals;
these now should be deleted.
* fix alpha, amiga, and arm32 to delete the maze of twisty little conditionals
way, we can safely add them to all the document source files in the
repository without changing the INSTALL document output. Long term we
are going to have to decide on a better document generation mechanism
-- this one is really on its last legs and too ad hoc for words.
version number from /sys/conf/osrelease.sh.
replace MACHINE symbol with _MACH, and define _VER for version number.
fileset names must still be updated by hand; this is a bit harder to
fix unless GNU cpp's -traditional-cpp flag is used.
