DataBase Methods and DB Changes

Added the final methods for the database.
There are some DB changes:
-Fixed a typo on the OrthoFinals table
-Added the option to be null to fields in the Matches Table
-Renamed a field in the Process table to have the same naming
conventions used in the rest of the DB
-Removal of the Windows_ID field in the ProcessingPair table as it's
unneeded as the multiple windows for a processing pair is handles with
the ProcessingPair ID in the windows table.

Added the changes to the database creation script to reflect this
changes.