Raise on db errors
Init scripts can return custom defaulted response, errors caught
Option for get_db to raise MWSServerError
Send db errors in debug mode only
Default database errors to raise MWS Exceptions.
Merge pull request #4 from FuegoFro/ryan_db_raise

Default database errors to raise MWS Exceptions
Merge pull request #265 from rcchan/db-raise

Raise on db errors