SQL: change sql script to alembic for Ed
Ed: remove useless functions
All: rewrite helps
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
Jormungandr: quick fix for best filtering

We will soon need to change all the journey type handling, but in the
mean time we do not filter the 'best' journey when we ask for the
'rapid' (since the best is a kind of rapid)
Jormun: add transportation mode to crow fly
Merge pull request #591 from antoine-de/add_mode_to_crowfly

Jormun: add transportation mode to crow fly
Raptor: change check to require

testing container size should be done with BOOST_REQUIRE and not
BOOST_CHECK
Merge pull request #593 from antoine-de/change_check_to_require

Raptor: change check to require
Merge pull request #592 from antoine-de/quick_fix_rapid_filter

Jormungandr: quick fix for best filtering
Disruptions: add new object model

add chaos object model to navitia.

Still keeping the old one before approval of this model.
Python: change requirements for protobuff to 2.4.1

the 2.5.0 is not supported by our servers