Adjust better to Autoconf quoting style change

Adjust better to Autoconf quoting style change

* admin/gitmerge.el (gitmerge-emacs-version):
* admin/nt/dist-build/build-zips.sh (ACTUAL_VERSION):
* admin/quick-install-emacs (VERSION):
* lisp/cedet/ede/emacs.el (ede-emacs-version):
Adjust to change in configure.ac’s Autoconf quoting style.
* etc/srecode/ede-autoconf.srt:
* test/lisp/progmodes/autoconf-tests.el:
(autoconf-tests-current-defun-function-define)
(autoconf-tests-current-defun-function-subst):
Use better Autoconf quoting.
* make-dist (version): Simplify.