update to work with newever versions of vala

meson_scripts/install_data.sh

@@ -1,7 +1,9 @@
-#!/bin/sh
+#!/bin/bash
+
+shopt -s extglob
 mkdir -p $DESTDIR/$1
 if [ -d "$2" ]; then
-	cp -a $2/* $DESTDIR/$1
+	cp -a $2/!(CMakeLists.txt) $DESTDIR/$1
 else
 	cp -a $2 $DESTDIR/$1
 fi