* Makefile (DOCS): Added "plugins.d/usplash.8mandos" and "plugins.d/splashy.8mandos". (install-client-nokey): Also install "plugins.d/usplash.8mandos" and "plugins.d/splashy.8mandos". (uninstall-client): Also uninstall "plugins.d/usplash.8mandos" and "plugins.d/splashy.8mandos".