Forgot that java uses path as namespace, so as long as no java classes
is importing java classes in the master app folder, then we are fine
Fix for issue #46

Added a new byte in payload to represent virtuality for wuobject from
nodes so mapper will not use the wrong wuobjects in the next deployment
and will generate the correct code in WKDeploy.java
Just a reminder to remove virtual in WuClassDef
Generate error message if the application specific files are not
copied over to WKDeploy dir