Update .mailmap
Update .mailmap

Would prefer not to have my private email here
sauliusg/jabref,tobiasdiez/jabref,zellerdev/jabref,Siedlerchr/jabref,tobiasdiez/jabref,sauliusg/jabref,sauliusg/jabref,tobiasdiez/jabref,JabRef/jabref,zellerdev/jabref,JabRef/jabref,tobiasdiez/jabref,JabRef/jabref,Siedlerchr/jabref,zellerdev/jabref,JabRef/jabref,Siedlerchr/jabref,zellerdev/jabref,zellerdev/jabref,sauliusg/jabref,Siedlerchr/jabref