add kwm window manager (river+kwm), remove old river config

lupan-clock/Makefile

@@ -3,6 +3,9 @@ PREFIX = /usr/local
 lupan-clock: lupan-clock.c
 	${CC} -o $@ $< -lX11 -Wall
 
+stdout-clock: stdout-clock.c
+	${CC} -o $@ $< -Wall
+
 install:
 	mkdir -p ${DESTDIR}${PREFIX}/bin
 	cp -f lupan-clock ${DESTDIR}${PREFIX}/bin