Version 0.97.0
Add more precisions on building requirements
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
Merge branch 'release' into dev
Merge branch 'release' into dev
Script_release fix a out_of_range error
Script_release: manage  github's API errors
Script_release: checkout release branch, before merge
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
ed : modification of the calculation function is_odt
for journeypattern object
jormungandr : rename odt_active
kraken : rename odt_active