Jormungandr: fix potential bug in get regions
Merge pull request #647 from antoine-de/fix_no_data_pb

Jormungandr: fix potential bug in get regions
raptor: fix the duration of thz section after a stayin

If the arrival and the departure was not the same the duration was
negative
Merge pull request #648 from kinnou02/negative_duration

raptor: fix the duration of thz section after a stayin
Ed: test for list emptyness before use

thanks @skywave for the tips
Merge pull request #650 from antoine-de/fix_potential_crash

Ed: test for list emptyness before use
Merge branch 'release' into dev
Jormungandr: changes to be up to date with release
Merge pull request #652 from antoine-de/dev

Release: Merge from Release