* riece-options.el (riece-shrink-buffer-idle-time-delay):

* riece-options.el (riece-shrink-buffer-idle-time-delay):
Abolished; moved to riece-shrink-buffer.el.
(riece-max-buffer-size): Ditto.
(riece-shrink-buffer-remove-chars): Ditto.

* riece.el (riece-shrink-buffer-idle-timer): Abolished; moved to
riece-shrink-buffer.el.
(riece): Don't set riece-shrink-buffer-idle-timer here.
(riece-exit): Don't cancel riece-shrink-buffer-idle-timer here.

* riece-shrink-buffer.el: New add-on.
* riece-addon-modules.el (riece-addon-modules): Added
riece-shrink-buffer.
* Makefile.am (EXTRA_DIST): Added riece-shrink-buffer.el.