Fixes to EvaluateKinetics.py database testing script.

1) Path was hard-coded to C:\RMG-database. It now runs on whatever folder
   the EvaluateKinetics.py script itself is in.
2) We weren't specifying which kineticsFamilies to load, which is now a
   requirement of the 'load' method (perhaps there should be a default?)
Merge pull request #1 from rwest/databaseTest

Fixes to EvaluateKinetics.py database testing script.