SQL: change sql script to alembic for Ed
Ed: remove useless functions
SQL: add README
SQL: add requirements.txt
Debian: change ed script directory
Ed: remove alembic version from tables
Alembic: add default value for parameter shape_computed
Alembic: remove administrative_regions table

It's a cities' table
Alembic: remove alembic_version table

it should not be done here
Alembic: declare enum
Merge pull request #586 from l-vincent-l/ed_alembic

Ed alembic