Refactor: Cleanup and expand client code to support <version|q|reload|debug>

Further refactoring of the client code.  Supported commands:

- debug:   Toggle PID 1 debug flag
- version: Show Finit version or custom header string
- reload:  Reload config files in /etc/finit.d/, same as SIGHUP

Also supported is the legacy 'init q' command, to reload config.

The 'status' command now supports an optiona '-v', either as an
argument to init itself, or as argument to the command.  When it
is given 'status' lists verbose information about all services.
Currently only the service arguments are listed.

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

sig.c

@@ -93,17 +93,7 @@ void do_shutdown(int sig)
  */
 static void sighup_cb(uev_ctx_t *UNUSED(ctx), uev_t *UNUSED(w), void *UNUSED(arg), int UNUSED(events))
 {
-	/* Mark and sweep */
-	svc_mark_dynamic();
-
-	/* Reload all *.conf in /etc/finit.d/ */
-	parse_finit_d(rcsd);
-
-	/* Reload dirty services */
-	service_reload_dynamic();
-
-	/* Cleanup stale services */
-	svc_clean_dynamic(service_unregister);
+	reload_finit_d();
 }
 
 /*