Merge pull request #18 from xduseko/master

Start script fix

startJD2.sh

@@ -3,20 +3,20 @@
 if [ "$GID" ] && [ "$GID" -ne "0" ]
 then
 	GROUP=jdownloader
-	groupadd -g $GID $GROUP
+	addgroup -g $GID $GROUP
 else
 	GROUP=root
 fi
 
 if [ "$UID" ] && [ "$UID" -ne "0" ]
 then
 	USER=jdownloader
-	useradd -r -N -s /bin/false -u $UID $USER
+	adduser -S -D -s /bin/false -u $UID $USER
 else
 	USER=root
 fi
 
-useradd -G $GROUP $USER
+adduser -G $GROUP $USER
 chown -R $USER:$GROUP /opt/JDownloader
 
 exec su-exec ${USER}:${GROUP} "$@"