Fix for OpenDJ-909 : ControlPanel.app exits during startup.
There are a number of issues with the Mac Apps, and this commit fixes most of them, but we should also change the icon name and picture once we have a logo for OpenDJ.
 The version and revision numbers are now automatically set when packaging.
 The -client JVM option is deprecated and thus removed. And we properly set the ServerRoot to allow ControlPanel to work when double clicking the icon.
 Note that Mac App are dependant on the JavaApplicationStub that only supports Java6. We fine for now, since OpenDJ is built with target 1.6, but we will need to redo the Apps when/if we switch to 1.7 by default.