title: How to disable or change the path of ghostdriver.log?
body: <p>Question is straightfoward, but some context may help.</p>
  
  <p>I'm trying to deploy scrapy while using selenium and phantomjs as downloader. But the problem is that it keeps on saying permission denied when trying to deploy. So I want to change the path of ghostdriver.log or just disable it. Looking at phantomjs -h and ghostdriver github page I couldn't find the answer, my friend google let me down also.</p>
  
  <pre><code>$ scrapy deploy
  Building egg of crawler-1370960743
  'build/scripts-2.7' does not exist -- can't clean it
  zip_safe flag not set; analyzing archive contents...
  tests.fake_responses.__init__: module references __file__
  Deploying crawler-1370960743 to http://localhost:6800/addversion.json
  Server response (200):
  Traceback (most recent call last):
    File "/usr/lib/pymodules/python2.7/scrapyd/webservice.py", line 18, in render
      return JsonResource.render(self, txrequest)
    File "/usr/lib/pymodules/python2.7/scrapy/utils/txweb.py", line 10, in render
      r = resource.Resource.render(self, txrequest)
    File "/usr/lib/python2.7/dist-packages/twisted/web/resource.py", line 216, in render
      return m(request)
    File "/usr/lib/pymodules/python2.7/scrapyd/webservice.py", line 66, in render_POST
      spiders = get_spider_list(project)
    File "/usr/lib/pymodules/python2.7/scrapyd/utils.py", line 65, in get_spider_list
      raise RuntimeError(msg.splitlines()[-1])
  RuntimeError: IOError: [Errno 13] Permission denied: 'ghostdriver.log
  </code></pre>