New York opendata scraper

[CaptainStabs]

• Changed a few print statements in the opendata module
• Added new york opendata scraper

• Added a comment to the template opendata

  Once again I screwed up with branch creation, and ended up pushing here instead.

• Applied pep8 standard to single_pdf_scraper module
• Removed an unneeded whitespace in get_files module
• Commented out an experimental feature of single_pdf_scraper module
• Scrapers added for Berkeley Ca
• Readme created for Berkeley

[richardji7]

Reviewed and merged.