build: fix Windows installer language lists.

Georgian translation was added today and Galician in March.

build/windows/installer/gimp3264.iss

@@ -186,12 +186,14 @@ Name: "es"; MessagesFile: "compiler:Languages\Spanish.isl,lang\es.setup.isl"
 Name: "eu"; MessagesFile: "compiler:Languages\Unofficial\Basque.isl,lang\eu.setup.isl"
 Name: "fi"; MessagesFile: "compiler:Languages\Finnish.isl,lang\fi.setup.isl"
 Name: "fr"; MessagesFile: "compiler:Languages\French.isl,lang\fr.setup.isl"
+Name: "gl"; MessagesFile: "compiler:Languages\Unofficial\Galician.isl,lang\gl.setup.isl"
 Name: "hu"; MessagesFile: "compiler:Languages\Unofficial\Hungarian.isl,lang\hu.setup.isl"
 Name: "hr"; MessagesFile: "compiler:Languages\Unofficial\Croatian.isl,lang\hr.setup.isl"
 Name: "id"; MessagesFile: "compiler:Languages\Unofficial\Indonesian.isl,lang\id.setup.isl"
 Name: "is"; MessagesFile: "compiler:Languages\Unofficial\Icelandic.isl,lang\is.setup.isl"
 Name: "it"; MessagesFile: "compiler:Languages\Italian.isl,lang\it.setup.isl"
 Name: "ja"; MessagesFile: "compiler:Languages\Japanese.isl,lang\ja.setup.isl"
+Name: "ka"; MessagesFile: "compiler:Languages\Unofficial\Georgian.isl,lang\ka.setup.isl"
 Name: "ko"; MessagesFile: "compiler:Languages\Unofficial\Korean.isl,lang\ko.setup.isl"
 Name: "lt"; MessagesFile: "compiler:Languages\Unofficial\Lithuanian.isl,lang\lt.setup.isl"
 Name: "lv"; MessagesFile: "compiler:Languages\Unofficial\Latvian.isl,lang\lv.setup.isl"

build/windows/installer/lang/Makefile.am

@@ -13,22 +13,24 @@ languages = \
 	de:[de]		\
 	el:[el]		\
 	en:		\
-	en_GB:[en_GB]		\
+	en_GB:[en_GB]	\
 	eo:[eo]		\
 	es:[es]		\
 	eu:[eu]		\
 	fi:[fi]		\
 	fr:[fr]		\
+	gl:[gl]		\
 	hr:[hr]		\
 	hu:[hu]		\
 	id:[id]		\
 	is:[is]		\
 	it:[it]		\
-	ja:[ja]			\
-	ko:[ko]			\
+	ja:[ja]		\
+	ka:[ka]		\
+	ko:[ko]		\
 	lt:[lt]		\
 	lv:[lv]		\
-	mr:[mr]   		\
+	mr:[mr]   	\
 	nl:[nl]		\
 	pl:[pl]		\
 	pt:[pt]		\