nonblocking through the use of scm_internal_select.
* emacs.scm: Removed use of nonblocking.scm.
* gwish.scm, gtcl.scm: Removed. tcltk.scm has made these
obsolete.
* syncase.scm (putprop, getprop): Modified to use the object
properties of the variable object corresponding to the symbol;
This way we can ride on the mechanisms of the module system.
Changed `builtin-variable' calls to `define-public' calls.
Setup the hooks sc-expand and sc-interface.
* boot-9.scm (sc-interface, sc-expand): New builtin variables.
(set-current-module): Switch to and from sc-expand as
scm:eval-transformer when going into and out of modules using
syncase macros.
(module-use!): Set scm:eval-transformer to sc-expand when adding
the syncase interface.
non-false, send back results to Emacs; colnum: Column number;
Use modules (ice-9 debug) and (ice-9 session);
(no-stack, no-source): New simple-actions;
(result-to-emacs): New procedure. Sends data to Emacs via the
result protocol;
(get-frame-source, emacs-select-frame, emacs-frame-eval,
emacs-symdoc): New procedures.
