Win32: fixed cpu hog by cache manager on exit (ticket #514). The "ngx_quit" may be reset by the worker thread before it's seen by a ngx_cache_manager_thread(), resulting in an infinite loop. Make sure to test ngx_exiting as well.

// Copyright (C) Igor Sysoev
// Copyright (C) Nginx, Inc.


nginx   icon  discardable  "src\\os\\win32\\nginx.ico"