Review Request: 8006567: jre/lib/applet missing from Mac JDK installation

[Erik Joelsson]

When copying the j2*-image dirs to j2*-bundle, empty directories weren't 
included. This caused jre/lib/applet to be missing. This patch makes 
sure empty directories are also copied over.

http://cr.openjdk.java.net/~erikj/8006567/webrev.jdk.01/
/Erik