based configuration file from one version to another, and also allows us
to have a single path of creating the table instead of creating tables
using SQLAlchemy or hand rolled SQL
This allows us to run the migrations directly in the code, and it will
avoid the error prone version numbering.
Patched by: Sarah McAlear
Revisions: Joao Pedro De Almeida Pereira, George Gelashvili.
Reviewed by: Ashesh Vashi, Murtuza Zabuawala
