This allows neutron-db-manage to find the alembic migrations
automatically if this project is installed.
The config file alembic.ini is not needed in this project since it's
tables are in neutron's DB and so it depends on neutron's config.
Remove the l2gw-db-manage script since we will use
neutron-db-manage.
Update the alembic env to know about all neutron core tables when
generating diffs for --autogenerate.
Partial-Bug: #1470625
Depends-On: I9a06de64ce35675af28adf819de6f22dc832390d
Change-Id: I581932d333e378d91d5b581760018ec274330681
This patchset enables to provide the migration script
'neutron-l2gw-db-manage' for create database tables for
networking_l2gw project.
Change-Id: I89eb370996c5ae416484df1135e0b7b3517a8b1f
Henry Gessau