Rename the global ij_launcher_jar variable, too
Rename the global ij_launcher_jar variable, too

It no longer points to ij-launcher.jar, but to imagej-launcher.jar,
after all.

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

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