Add babel support for lang

syntax/vue.vim

@@ -42,7 +42,7 @@ endif
 
 syntax include @JS syntax/javascript.vim
 unlet b:current_syntax
-syntax region script keepend start=/<script\s*\(type="text\/babel"\)\?>/ end="</script>" contains=@JS fold
+syntax region script keepend start=/<script\( lang="babel"\)\?\( type="text\/babel"\)\?>/ end="</script>" contains=@JS fold
 
 if s:syntaxes.coffee
   syntax include @COFFEE syntax/coffee.vim