Update version mapping for "1.0" branch

Alexander Obuhovich · Alexander Obuhovich · commit ccd592559480 · 2018-12-08T13:05:04.000+02:00
diff --git a/composer.json b/composer.json
@@ -18,7 +18,7 @@
 
 	"extra": {
 		"branch-alias": {
-			"dev-master": "1.0.x-dev"
+			"dev-1.0": "1.0.x-dev"
 		}
 	},
 	"config": {
