update dependencies and fix some bugs

[bjtulynn]

to run the project normally with recent stable dependencies, we need modify some points as below:

1. update spider package (BaseSpider->Spider)
2. update pipeline package (MediaPipeline -> ImagesPipeline)
3. update mongodb package (pymongo.connection -> pymongo)
4. fix bug for SpiderInfo instance (spiderinfo[spider] -> spiderinfo(spider))
5. fix bug for FilePipeline init (add one missing parameter)

[Bajie-cigarette]

我按照你的方法对代码进行了修改
出现了如下的错误：
Unhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/scrapy/commands/crawl.py", line 57, in run
self.crawler_process.crawl(spname, **opts.spargs)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 163, in crawl
return self._crawl(crawler, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 167, in _crawl
d = crawler.crawl(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1237, in unwindGenerator
return _inlineCallbacks(None, gen, Deferred())
--- ---
File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1099, in _inlineCallbacks
result = g.send(result)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 90, in crawl
six.reraise(*exc_info)
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 72, in crawl
self.engine = self._create_engine()
File "/usr/local/lib/python2.7/dist-packages/scrapy/crawler.py", line 97, in _create_engine
return ExecutionEngine(self, lambda _: self.stop())
File "/usr/local/lib/python2.7/dist-packages/scrapy/core/engine.py", line 70, in init
self.scraper = Scraper(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/core/scraper.py", line 71, in init
self.itemproc = itemproc_cls.from_crawler(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/middleware.py", line 58, in from_crawler
return cls.from_settings(crawler.settings, crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/middleware.py", line 36, in from_settings
mw = mwcls.from_crawler(crawler)
File "/usr/local/lib/python2.7/dist-packages/scrapy/pipelines/media.py", line 51, in from_crawler
pipe = cls.from_settings(crawler.settings)
File "/usr/local/lib/python2.7/dist-packages/scrapy/pipelines/images.py", line 95, in from_settings
return cls(store_uri, settings=settings)
exceptions.TypeError: init() got an unexpected keyword argument 'settings'

我感觉是错误是出现在file.py中的
super(FilePipeline, self).init(store_uri,download_func=download_func)

这是怎么回事？