changed tablespace names
update NOT NULL columns
updated schema for UKs, FKs, Indexes
create separate file for triggers
Added source_id throughout schema.
git pushMerge branch 'finalize-schema' of https://github.com/yeastgenome/SGDBackend into finalize-schema

Merge
finish initial review, added UKs, indexes, etc.
updated AUX_ UK, FK, sequence names
Added --/ and / to triggers - seems to be necessary to run the script from DBVisualizer.
Changed source columns to source_id (INTEGER). Added source table. Added condition tables. Added alias and url tables back.
Working on bringing conversion code up to date with schema. Finished convert_core.
Second round of schema changes. Convert core finished.
Almost finished with conversion scripts.
Moved logging into convert_logs directory.
Added config file option to convert_ scripts.
Updated boostrap.py file.
Almost done updating conversion scripts.
Only one config file now.
Almost finished with conversion scripts.
Finished schema conversion code.