One more thing to try:
Can you verify that you have your classes (com.micron.rssdm.gui.web.RSSDMWebApplication) actually in your war file? I guess they will be under WEB-INF/classes.
Then add the 'classes' to your Bundle-ClassPath in the MANIFEST.MF file:
Bundle-ClassPath: .,wicket-core-1.5.8.jar, classes