Fixed some runtimes.

Job system once again has -1 as unlimited.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@2451 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/admin/admin.dm

@@ -654,7 +654,7 @@
 	if (href_list["revive"])
 		if ((src.rank in list( "Trial Admin", "Badmin", "Game Admin", "Game Master"  )))
 			var/mob/living/M = locate(href_list["revive"])
-			if (ismob(M))
+			if (isliving(M))
 				if(config.allow_admin_rev)
 					M.revive()
 					message_admins("\red Admin [key_name_admin(usr)] healed / revived [key_name_admin(M)]!", 1)

code/modules/admin/verbs/adminhelp.dm

@@ -21,4 +21,6 @@
 
 	usr << "Your message has been broadcast to administrators."
 	log_admin("HELP: [key_name(src)]: [msg]")
-	tension_master.new_adminhelp()
+	if(tension_master)
+		tension_master.new_adminhelp()
+	return