get_spider_list_from_eggfile(): more improvements to error messages, and support passing eggruner module as argument
get_spider_list_from_eggfile(): more improvements to error messages, and support passing eggruner module as argument

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