Log Message:
Update to 2.0.13:

version 2.0.13 (2008-05-20):
	* Additional translations (see po/ChangeLog).
	* Enchant support (support for pspell/aspell dropped) (Dom Lachowicz)

version 2.0.12 (2008-05-09):
	* Make debug, quiet and build_suggestion_menu static in gtkspell.c
	  to prevent exporting them.
	* One additional translation (see po/ChangeLog).
	* Move spell-checking library from Libs to Libs.private in
	  gtkspell-2.0.pc
	* Update autogen.sh to use intltool
	* Fix warnings with -Wstrict-prototypes by Richard Laager

Bump API for dependency changes.