FinishPanel has hardcoded path for Uninstaller location

Say you change the installer dir, or even just make it uninstaller rather than Uninstaller:

<uninstaller name="uninstaller.jar" path="$INSTALL_PATH/uninstaller"/>

FinishPanel doesn't respect that when it tells the user where to find the uninstaller:

// We prepare a message for the uninstaller feature
String path = translatePath("$INSTALL_PATH") + File.separator + "Uninstaller";

Instead, it should pick up the correct uninstaller path.