Add test for concat into dataframe
Take advantage of pandas concat
Merge pull request #665 from cpcloud/speedup-concat

Take advantage of pandas.concat
Remove python lib imports from blaze
Don't depend on blaze to import stdlib modules
Refactor the mysql-into test suite
Make sure we're escaping and rolling back appropriately
Use transactions in a context manager
Put back dbtype encoding
Try with local
Check if we are actually running through mysql
Remove assert False