Massive updates. Carwler now creates screenshots and saves nodes and edges to csv files.

	modified:   SiteCrawler/items.py
	modified:   SiteCrawler/items.pyc
	modified:   SiteCrawler/pipelines.py
	new file:   SiteCrawler/pipelines.pyc
	new file:   SiteCrawler/screenshooter.py
	new file:   SiteCrawler/screenshooter.pyc
	modified:   SiteCrawler/settings.py
	modified:   SiteCrawler/settings.pyc
	modified:   SiteCrawler/spiders/myfuncs.py
	modified:   SiteCrawler/spiders/myfuncs.pyc
	modified:   SiteCrawler/spiders/sitecrawler_spider.py
	modified:   SiteCrawler/spiders/sitecrawler_spider.pyc