title: Scrapyd pause/continue job
body: <p>Looks like there is no legal way to pause/continue crawling with Scrapyd, as it was with Scrapy itself (scrapy crawl spider -s JOBDIR=jobdir/spider-1). 
  The only resolution i've found was here:</p>
  
  <p><a href="https://groups.google.com/forum/#!msg/scrapyusers/2VjEBEbOo7s/MSH4GJc2B0sJ" rel="nofollow noreferrer">https://groups.google.com/forum/#!msg/scrapyusers/2VjEBEbOo7s/MSH4GJc2B0sJ</a></p>
  
  <p>but i haven't understand the idea.</p>
  
  <p>So is it possible to pause/continue job with Scrapyd?</p>
  
  <p>Thanks for your time</p>