Bugfix in parse command. Some options were not being processed

--HG--
extra : convert_revision : svn%3Ab85faa78-f9eb-468e-a121-7cced6da292c%40535

scrapy/trunk/scrapy/command/commands/parse.py

@@ -22,6 +22,7 @@ class Command(ScrapyCommand):
         parser.add_option("-c", "--callbacks", dest="callbacks", action="store", help="use the provided callback(s) for parsing the url (separated with commas)")
 
     def process_options(self, args, opts):
+        super(Command, self).process_options(args, opts)
         self.callbacks = opts.callbacks.split(',') if opts.callbacks else []
 
     def pipeline_process(self, item, spider, opts):