Dynamically manage service states based on user defined conditions

Old event system has been replaced with a more generic condition
concept. The idea is that finit plugins may provide arbitrary
conditions that services may specify as dependencies that they require
to run.

In order to accomodate this, the service management has been
redesigned to use a state machine.

Makefile

@@ -34,10 +34,10 @@ ARCHTOOL    = `which git-archive-all`
 ARCHIVE     = $(PKG).tar
 ARCHIVEZ    = ../$(ARCHIVE).xz
 EXEC        = finit initctl reboot
-HEADERS     = finit.h plugin.h svc.h inetd.h helpers.h queue.h
+HEADERS     = finit.h plugin.h svc.h inetd.h helpers.h queue.h cond.h
 DISTFILES   = LICENSE README ChangeLog finit.conf services
 OBJS        = finit.o api.o client.o conf.o exec.o helpers.o pid.o sig.o \
-	      svc.o service.o plugin.o tty.o inetd.o event.o
+	      svc.o service.o plugin.o tty.o inetd.o cond.o cond-w.o
 DEPLIBS     =
 TOPDIR      = $(shell pwd)
 -include config.mk
@@ -70,7 +70,7 @@ config.h: configure
 
 finit: $(OBJS) $(DEPLIBS)
 
-initctl: initctl.o svc.o helpers.o $(DEPLIBS)
+initctl: initctl.o svc.o helpers.o cond.o $(DEPLIBS)
 
 reboot: reboot.o $(DEPLIBS)