Added SQLAlchemy files for db schema and testing inserts
Fixed incorrectly named 'dbschema' import
organized code and added some comments
Fix NameError caused by default = null

NULL was not defined but 'NULL' was
reorganize
started new postgresql-verion scripts
Fix typo
Added functionality for Python 2

Although slower in Python 2, the script is able to process binary data
for the BYTEA data type, which causes a TypeError in Python 3
Made separate Postgres-insert scripts fro Py 2 and Py 3
Inconsequential syntax edit
Fix warning that NUll was not a valid integer value

Upon insertion, warnings would show stating that 'NULL' was not a valid
intger value for rev_parent_id. Fixed by changing the default value in
the schema from 'NULL' to None, effectively casuing the database to
populate the table with NULLS instead of inserting them. Similarly, NULL
values in the revision.csv are now replaced with None
Renamed to indicate script uses SQLAlchemy core
Renamed to indicatescript uses ORM
Added new script for MySQLdb + SQLAlchemy Core
New script to for insertions using MySQLdb+Core and renamed accordingly
Added files for PyMySQL + Python 2
Attempt to fix unicode errors on MySQLdb inserts

While the reccomended url is .../dbname?charset=utf8&use_unicode=0,
just using /dbname seems to eliminate the warnings, but it may be handling
non ascii codes incorrectly
Changed tables to MyISAM for testing purposes
Added three new tables/classes for further classifying metadata
First Commit of Ipython Notebook