Delete old logs based on file mtime.
Delete old logs based on file mtime.

nyov/scrapyd,wujuguang/scrapyd,masterPPP/scrapyd,dfockler/scrapyd,eliasdorneles/scrapyd,masterPPP/scrapyd,aivarsk/scrapyd,wujuguang/scrapyd,aivarsk/scrapyd,dfockler/scrapyd,sigma-random/scrapyd,sigma-random/scrapyd,nyov/scrapyd,2014fgq/scrapyd,CENDARI/scrapyd,eliasdorneles/scrapyd,2014fgq/scrapyd,scrapy/scrapyd,CENDARI/scrapyd