Ed: Check existence of some columns
Merge pull request #367 from l-vincent-l/check_existence_of_cols

Ed: Check existence of some columns
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
kraken : rename odt_active
kraken : refactoring
jormungandr : journey with forbidden_uri line if odt journey