ed: fix a crash when there is empty validity period in data.
ed: importing shapes (much) faster
ed: rename VehicleJourney::shape to VehicleJourney::shape_id
Merge pull request #651 from TeXitoi/shape-optimization

ed: importing shapes (much) faster
ed: fix a crash when there is empty validity period in data.
Kraken: always update working date in stay_in
Kraken: add a recoverable exception so we don't segfault
Jormungandr: fix potential bug in get regions
Version 1.3.1
Merge branch 'release_1.3.1' into release
Merge branch 'release' into dev