Alpha-4 ready for new coordinates &c.

[<eric@son-of-blob>]

The directory ~eric/xu/alpha-4 has a version with the new tables integrated
well enough for the waldo test to execute.  Presently the garbage collector
is enabled, but the heap limit is set to 10Mb so the small tests can run
safely.  When this limit is hit and the client code hasn't declared enough
strong pointers, you can expect a LARGE core file.  If this is a problem and
you don't want to make the strong pointer change over yet, you can redefine
HEAP_SIZE which is defined in tofux.cxx (yes .cxx, nobody else needs to know).

	- e -