Install de.renew.navigator.git-2.0.1
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Copy de.renew.navigator.git-2.0.1.jar from the plugins directory into the plugins directory of your Renew installation.
Copy de.renew.navigator.git-2.0.1 (whole directory) from the libs directory to the libs directory of your Renew installation.

This plugin depends on the following plugins: CH.ifa.draw, de.renew.imagenetdiff, de.renew.navigator.vc.
Make sure you have these installed as well.