Allow testing to be run from the root directory using nosetests
Add some basic unit tests for functions with no dependencies
Add tests of automated identification of the delimiter
Moving simple engine creation to a fixture

This is probably not the right way to do this, but it's all I can
get to work at the moment.
Add tests for auto_get_columns

1. Simple test for identifying column names
2. Test of the cleanup functions to remove special characters and
   database keywords
Adding tests for extracting values from lines of data
Merge pull request #114 from ethanwhite/simple-tests

Add simple unit tests