fix for 165957

http://www.netbeans.org/issues/show_bug.cgi?id=165957

An incomplete fix for 
http://www.netbeans.org/issues/show_bug.cgi?id=162741 prevents users 
from registering v3 servers, since the Glassfish registry and the 
j2eeserver registry are both incomplete as a server is registered.  In 
the fix for 162741, I assumed that the GF registry was updated 
completely BEFORE the j2eeserver registry was going to be altered... and 
that was not a correct assumption.

This is a show stopper since v3 servers cannot be registered... except 
via import of an NB 6.5 user dir.

The code change completes the registration of instance into the 
Glassfish registry before operations happen in the j2eeserver registry.

The change set is referenced in the issue.