updated Dockerfile

website updated its URLs, had to update in the code

added example invocation to end of code for debugging

Update tiger2sql.py

Update tiger2sql.py

Update tiger2sql.py

Create tiger2sql.py

typo fix in db schema

bug fix 'cleanup' option

added random space just to test username config

added cleanup option, fixed shutils bug

add 'cleanup' option

Tiger process updates

Update Dockerfile

Merge pull request #1 from ccb-hms/sam-pullman-patch-1