The expansion table now includes gatherer code and old code abbreviations for sets. Find Set cascades through those looking for a match.
Updated the card exception codes so that they inherit from a base class.
Removed creating expansions in the db_init because those are mostly created in the parsing now.
Added a table for MTGOprices.

This table is a one to one with card releases.
Updated so that whenever a card release is created, a blank MTGOPrice is created for it.
Updated to use the config file.
Updated the MTGO price parser to use the database rather than an in memory dictionary.

It also prints out if it cannot parse a card.
Added a card function to get all of its prices.
Added some logging lines to mtgotraders.
Commit all of the changes to the DB.
Add a bot command to get the mtgo prices for cards.
Added a paver routine for mtgo prices.
Merge branch 'eprice-refactor' into object-oriented