* ediff*el: replaced load with require in eval-when-compile.
* ediff-hook: deleted all invocations of (autoload ...).
* ediff-util.el (ediff-setup): make window-min-height a local variable
in ediff control window, and set its min height to 2.
(ediff-setup-control-buffer): dedicate the control window.
(ediff-toggle-multiframe): undedicate control window.
Work directly with ediff-setup-windows-multiframe and
ediff-setup-windows-plain.
* ediff-wind (ediff-choose-window-setup-function-automatically): new
function.
(ediff-window-setup-function): change initialization.
(ediff-setup-windows-automatic): deleted.
(ediff-setup-windows-plain-merge): make control window dedicated.
(ediff-destroy-control-frame): do not skip frames if working in a
single frame.
* emulation/viper-ex.el: move provide's forward, prevent ecursion in
eval-when-compile.
* emulation/viper-util.el: move provide's forward, prevent ecursion in
eval-when-compile.
2d84cc270a