fix build script to include shaders for OpenGL

java/libraries/opengl/build.xml

@@ -18,6 +18,14 @@
 	   encoding="UTF-8"
 	   includeAntRuntime="false"
 	   classpath="../../../core/core.jar; library/jogl.all.jar; library/nativewindow.all.jar;" />
+
+    <!-- Copy the shaders to the bin folder. 
+	 Eclipse does this automatically. -->
+    <copy todir="bin">
+      <fileset dir="src">
+	<include name="processing/opengl/*.glsl" />
+      </fileset>
+    </copy>
   </target>
 
   <target name="build" depends="compile" description="Build OpenGL library">