added change-password script

src/change-password

+#!/bin/bash
+
+passwd
+read -n 1 -r -s -p $'\nPremi un tasto qualsiasi per terminare...\n'
+

src/change-password.desktop

+[Desktop Entry]
+Type=Application
+Encoding=UTF-8
+Icon=/usr/share/icons/hicolor/48x48/apps/gcr-password.png
+Exec=xfce4-terminal -e change-password --hide-menubar --hide-toolbar --hide-scrollbar -T %c
+Name=Change Password
+Name[it]=Cambia la password
+Name[de]=Passwort ändern
+Comment=Change your password
+Comment[it]=Cambia la tua password
+Comment[de]=Dein Passwort ändern
+Terminal=False
+Categories=Settings;