Skip IJ1's OS X application listener

The listener conflicts with the OS X application listener installed by
ImageJ2, producing the error message: "java.lang.IllegalStateException:
Cannot add com.apple.eawt.ApplicationListener after installing an app
event handler".

Fixes #1930.
Really skip IJ1's application listener

This actually implements the fix talked about in
a32022adde03ba4d792bcc938897307bf0c53be4.

My earlier fix did not work, and I failed to notice in my tests.