Script_release: checkout release branch, before merge
Script_release: manage  github's API errors
Version 0.97.0
Merge branch 'release_0.97.0' into release
Ed: Check existence of some columns
Merge pull request #367 from l-vincent-l/check_existence_of_cols

Ed: Check existence of some columns
Tyr: handle a new parameter is_free on instance config file
Merge pull request #369 from l-vincent-l/add_tyr_is_free

Tyr: handle a new parameter is-free on instance config file
Version 0.97.1
Ed: Check existence of some columns
Tyr: handle a new parameter is_free on instance config file
Merge branch 'release' into dev
Merge branch 'release_0.97.1' into release
Merge branch 'release' into dev
kraken : add is_odt in journeypattern object
kraken : calculate is_odt variable
kraken : tests for calculate is_odt variable
kraken : odt_active parameter of journeys
kraken : add tests for journeys with odt_active
jormungandr : add odt_active for journeys