OS-X native installers and "Apple menu" support module

Hi, all,

I just checked some stuff into contrib that may be of
interest to os-x users.  There are two things:


- An ant script that will build a native apple .pkg
installer for NetBeans.  It also does some rearranging
of the installation structure to match a standard OS-X
.app package and munges runide.sh to find it, then
packages it up into an installer package and generates
a disk image of it.

There are also some targets for generating application
tarballs, etc.  Should be applicable to any app based
on NetBeans (probably with only build.properties changes):

http://contrib.netbeans.org/osx-native-installer/readme.html
(source in contrib/osx-native-installer)

(You probably need some BSD/NeXT command line utils to build
it on a non OS-X machine)


- A trivial module which makes NetBeans interact properly
with the "Apple menu" - it hides the following actions:
Help | About, Tools | Options and File | Exit, and rewires
them to be invoked from their standard homes in the Apple
menu.  This has the nice side effect that pressing Meta-Q
no longer brutally kills NetBeans' process.

It's in contrib/osx-native-installer/applemenu - you need
either OSX or Apple's stub library for compiling against their
extensions on non-Apple machines.


Also just checked in some toolbar ui enhancements.

Enjoy,

Tim