Wrong encoding in german properties

project-info-report_de.properties is encoded UTF-8, but properties files are interpreted ISO-8859-1. This leads to mojibake, e.g. "Abhängigkeiten" (including a with diaresis) displayed as "Abhängigkeiten" (two characters corresponding to UTF-8 bytes). Simply run "recode u8..l1" on these files to fix the issue, as all used characters are available in ISO-8859-1 as well.