Fix Bug 591: Fix 'jnlp.' aliasing of PropertyAccess.getProperty(..):
Usually you set a property like jogamp.debug.IOUtil jogamp.debug=all to enable either IOUtil debugging or all debugging.
In case you use Applets or JNLP you cannot use above property namespace, since it's considered insecure. GlueGen would allow you to use an 'jnlp.' alias, e.g.: jnlp.jogamp.debug.IOUtil jnlp.jogamp.debug=all
The latter are secure properties and will be passed to the invoked JVM.
All properties requested by PropertyAccess.getProperty(..) shall be aliased w/ 'jnlp.' (prepend 'jnlp.'), if no value could be found with the given key.