Remove link to add_crawl page on sidebar.
Remove link to add_crawl page on sidebar.

YongchaoShang/memex-explorer,YongchaoShang/memex-explorer,memex-explorer/memex-explorer,YongchaoShang/memex-explorer,memex-explorer/memex-explorer,memex-explorer/memex-explorer,memex-explorer/memex-explorer,YongchaoShang/memex-explorer