Remove TABs in some source code, replacing them with spaces

Use Emacs's conception of how many spaces the TAB was
representing (and the M-x untabify command).

This may not line up with the author's original conception, but then,
using TABs makes it impossible to tell just what the original
conception was in the first place anyway.

Should probably script this over all of repository (excluding
makefiles of course), and use standard expand or col utilities rather
than emacs.

Remove eqtype declaration for term type

Change src/bool to src/1 as a prelude to experimentation!