renamed ItemPipeline class to ItemPipelineManager to avoid confusions

--HG--
extra : convert_revision : svn%3Ab85faa78-f9eb-468e-a121-7cced6da292c%40614

scrapy/trunk/scrapy/core/engine.py

@@ -17,7 +17,7 @@ from scrapy.core.downloader import Downloader
 from scrapy.core.exceptions import IgnoreRequest, HttpException, DontCloseDomain
 from scrapy.http import Response, Request
 from scrapy.item import ScrapedItem
-from scrapy.item.pipeline import ItemPipeline
+from scrapy.item.pipeline import ItemPipelineManager
 from scrapy.spider import spiders
 from scrapy.spider.middleware import SpiderMiddlewareManager
 from scrapy.utils.defer import chain_deferred, defer_succeed, mustbe_deferred, deferred_degenerate
@@ -59,7 +59,7 @@ class ExecutionEngine(object):
         self.downloader = downloader or Downloader()
         self.spidermiddleware = SpiderMiddlewareManager()
         self._scraping = {}
-        self.pipeline = ItemPipeline()
+        self.pipeline = ItemPipelineManager()
         # key dictionary of per domain lists of initial requests to scrape
         self.starters = {}
 

scrapy/trunk/scrapy/item/pipeline.py

@@ -5,7 +5,7 @@ from scrapy.utils.misc import load_class
 from scrapy.utils.defer import defer_succeed, mustbe_deferred
 from scrapy.conf import settings
 
-class ItemPipeline(object):
+class ItemPipelineManager(object):
 
     def __init__(self):
         self.loaded = False