updated for version 7.3.598

Problem:    Cannot act upon end of completion. (Taro Muraoka)
Solution:   Add an autocommand event that is triggered when completion has
            finished. (Idea by Florian Klein)

src/vim.h

@@ -1241,6 +1241,7 @@ enum auto_event
     EVENT_CMDWINENTER,		/* after entering the cmdline window */
     EVENT_CMDWINLEAVE,		/* before leaving the cmdline window */
     EVENT_COLORSCHEME,		/* after loading a colorscheme */
+    EVENT_COMPLETEDONE,		/* after finishing insert complete */
     EVENT_FILEAPPENDPOST,	/* after appending to a file */
     EVENT_FILEAPPENDPRE,	/* before appending to a file */
     EVENT_FILEAPPENDCMD,	/* append to a file using command */