change global settings to SAE
update global settings,rollback monitor spider
change global_settings for SAE
UPDATE
MOD: UpdateSpider

无论单品的下线状态是什么，都对其进行更新。
ADD: 添加user agent支持。
ADD: Louis Vuitton指定使用iPad的user agent。
MOD: ProductsImagePipeline

描述入库的逻辑。
changed recrawler.py for DKNY, need to modify
Merge remote-tracking branch 'origin/dev' into dev
FIX BUG: UpdateSpider
munual merge
Merge remote-tracking branch 'origin/dev' into distribution

Conflicts:
	global_settings.py
	scrapper/spiders/monitor_spider.py