Install change-password.svg under pixmaps

debian/install

 src/change-password		usr/bin
 src/change-password.desktop	usr/share/applications
-# src/change-password.svg		usr/share/applications/change-password.desktop
+src/change-password.svg		usr/share/pixmaps
 src/password-next-change	usr/bin
 src/password-next-change.desktop	etc/xdg/autostart
 src/set-session-language	usr/bin

src/change-password.desktop

 [Desktop Entry]
 Type=Application
 Encoding=UTF-8
-Icon=/usr/share/applications/change-password.desktop/change-password.svg
+Icon=/usr/share/pixmaps/fuss-utility-change-password.svg
 Exec=/usr/bin/change-password
 Name=Change Your Password
 Name[it]=Cambia la tua password