Message2276

In PyJavaClass.java:
Make sure that no more methods are called.

Factored setBeanInfoCustum(), setFields() and 
setMethods() into a new setAttributes() method.

Call setAttributes() for proxyClass (old behaviour) and for 
all interfaces (new).
setAttributes() does nothing when the given class/interface
is not public.


Doing setBeanInfoCustom() also on interfaces may be
a bit much, but why not? Currently there don't seem
to be bean like things in interfaces, but that might change.

Also removed several old lines with commented code.

I hope I got the indentation right.