Remomving unused import
Adding debug flag (moved depth flag to -n), using it to keep PyMW files
Switching to absolute-path imports to be compatible with PyMW
Formatting
Bitten again by the tuple "feature"
Formatting
Updating program description
Refactored DB Connection Code

Mainly because application state cannot be pickled into a worker so all
connections will have to be done inside the get_nodes call. This is
something we might want to optimize later.