Supporting translation

[karimhm]

Observed behavior (please include a screenshot if possible)

A few months ago translation was added to GTFS core specifications, but until now there is no support for it.

Expected behavior

The editor should allow providing translated names of records such as stops, routes, calendars, etc...

Any special notes on configuration used

In the past translation was part of Google Transit Extensions to GTFS for serval years, but now it is part of the core specifications. One issue is that the old format and the new format uses the same file translations.txt, but the content of the files has changed in a way they are not compatible. And there's still feeds that uses the old format.

Version of datatools-ui and datatools-server if applicable (exact commit hash or branch name)

82ee96632af47851c469182a3becaee5eef36c23

[karimhm]

The translation proposal was merged on Feb 15, 2019 google/transit#180