Fix previous commit

imagej1-github is already taken for the ImageJ 1.x repository mirror...

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
We cannot push to fiji.sc directly any longer

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
jenkins-job: make sure that Maven updates the release info properly

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