New Bug Code

I have just checked in the new and improved BugList!  Things that have
changed:

1) You do not need the tasklist.bugs.query in your ide.cfg any more! 

2) Pressing the "Bug" icon will now open a "New Query" dialog.  This
dialog contains a drop down with the available bug engines.  It also
contains a VERY generic query panel with the Base URL and the query
string.  

The Base url should be in the form of: http://www.netbeans.org/issues
The query string should be something like: 
issue_status=NEW&issue_status=STARTED&...order=Reuse+same+sort+as+last+t
ime

Then when you hit OK, it will open a new Bug tab in the output window
and the query will proceed as it did before.  This allows you to have
many different queries open all at once.  It also allows you to have
multiple queries to DIFFERENT bug DBs open at the same time.  

3) There is also now support for a bugzilla bug db.  As of right now,
the plugin doesn't work with http://bugzilla.mozilla.org because their
query.cgi works differently than the base install (It pops up a please
wait message because their DB is so large).  But this plugin works just
as good as the issuezilla one does with the bugzilla install I have
here.  I'm trying to find another public bugzilla db I can use to test
it with.

I would appreciate any feedback you guys have on it.  Let me know if you
see any problems as well.  Hopefully I didn't break anything with my
first commit to netbeans!!  :)

Andrew