All crawl added
	modified:   TNspider/items.py
	modified:   TNspider/pipelines.py
	new file:   TNspider/spiders/BITcrawl.py
	new file:   TNspider/spiders/BUPTcrawl.py
	new file:   TNspider/spiders/CAUcrawl.py
	new file:   TNspider/spiders/DAJIEcrawl.py
	new file:   TNspider/spiders/HAITOUcrawl.py
Merge branch 'dev'