Factor out runlevel handling to new UTMP API

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

Makefile.am

@@ -1,7 +1,8 @@
 ACLOCAL_AMFLAGS    = -I m4
 sbin_PROGRAMS      = finit initctl reboot
 finit_SOURCES      = finit.c api.c client.c conf.c exec.c getty.c helpers.c pid.c \
-		     sig.c svc.c service.c plugin.c tty.c cond.c cond-w.c sm.c
+		     sig.c svc.c service.c plugin.c tty.c cond.c cond-w.c sm.c    \
+		     utmp-api.c utmp-api.h
 pkginclude_HEADERS = cond.h finit.h helpers.h inetd.h plugin.h svc.h
 if INETD
 finit_SOURCES     += inetd.c