scrape folder renamed to bang to conform with other projects.
Database module cleaned up.
  A few functions and docstrings have been moved into the base class.
Base class has been added for scraper.
  Existing scrapers have been ported over to use the base class.
  Everything scraping related is now located in scraper.py.
  pinnacle_scraper.py and yahoo_scraper.py will soon be removed.
PEP8
A first pass at a scraper scheduler, ScraperManager, has been added.
Fixed misnamed method ensure_index in database.py
Added params keyword to request() in scraper.py
Corrected xmltodict to xmltodict.parse()
Fixed issue with double logging.
Logger is now configured exactly once in ScraperManager. This is something
that needs to be investigated further.
Cleaned up redundant files.
Merge branch 'master' into reorganize