[MRG+1] rename SpiderManager to SpiderLoader #1166
As discussed in #873.
What do you think about renaming CrawlerRunner.spiders to CrawlerRunner.spiderloader or CrawlerRunner.spider_loader? I'd remove it altogether, but that needs another discussion :)
Thanks for fixing the mistake in #1148 while you were on it :)
+1 to all changes, I'd rename CrawlerRunner.spiders to CrawlerRunner.spiderloader but I don't mind the underscore in the middle, both conventions seems to be used in
Please don't open the discussion again for the name of SpiderLoader ._. let's stick with it.