merge with dev

crawler_script/backwards_tracker.py

@@ -60,7 +60,7 @@ with open(sys.argv[1]) as data_file:
         os.chdir(scrapyDir+s['crawler'])
         print media
         print scrapycommand
-        # os.system(scrapycommand)
+        os.system(scrapycommand)
         fileSize = os.stat(filename).st_size
         if fileSize <= 3: os.system("rm " + filename)
         else: