dialogs/accessibility-settings/Makefile.am,
	  dialogs/mouse-settings/Makefile.am,
	  dialogs/appearance-settings/Makefile.am,
	  dialogs/keyboard-settings/Makefile.am: Add --strip-comments 
	  --strip-content to exo-csource for generating glade headers.
	* configure.ac.in: Bump exo version to 0.3.7.1 since stripping
	  glade files on older versions is broken.

(Old svn revision: 27331)