Sort the column items in DBAPI
Use columnList instead of sorting alphabetically
Further simplify how we construct our data in DBAPI

This is a result of Oleg's feedback on pull request #2
Merge pull request #2 from sqlobject/feature/use-sorted-list

Sort the column items in DBAPI
Add first pass at tox.ini config file
Simplify travis-ci configuration
Add pyflakes environments
Use flake8 instead of just pyflakes