Merge pull request #21 from Kapin/gh-pages

Adding more information to SSN, SF-Food, and SF-Transportation.
SSN Boston notes, one or two spelling fixes, financial advice
Updated cross-border banking info
added chicago. added SSN general info.
Merge pull request #22 from KevinKarruthers/gh-pages

SSN Boston notes, one or two spelling fixes, financial advice
Merge pull request #23 from rickeywang/patch-1

added chicago. added SSN general info.
Cleanup and contrib names
Updated Bank and SF info