Fix #18: Add support for calling run/tasks on HOOK points

This patch implements support for calling run/task jobs on the built-in
`HOOK_*` points in Finit.  To map each HOOK point to a condition a new
classification was made, as shown in plugin.h and in the example below.

task <hook/mount/root> /sbin/attachubi.sh      # run in parallel with other tasks/services
run  <hook/net/up>     /sbin/dosomething.sh    # run in sequence with other commands

Please note, only rudimentary tested.

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

plugins/pidfile.c

@@ -114,7 +114,7 @@ static void pidfile_reconf(void *_null)
 		}
 
 		if (restart)
-			service_step_all(SVC_TYPE_SERVICE | SVC_TYPE_INETD);
+			service_step_all(SVC_TYPE_SERVICE | SVC_TYPE_RUNTASK | SVC_TYPE_INETD);
 
 	} while (restart);
 }