launcher: discover jars/ij-launcher{-[0-9]*,}.jar
launcher: discover jars/ij-launcher{-[0-9]*,}.jar

We really want to have versioned .jar file names...

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

This used to be revision r5430.

imagej/imagej-launcher,imagej/imagej-launcher,imagej/imagej-launcher