support individual .csv/.txt files as input?

[derhuerst]

I like to stores and serve GTFS dataset as individual files. This way, partial downloads, caching, streaming processing, etc. are much easier.

Would you consider a PR that adds the possibility to use a set of .csv/.txt paths as input?

[pietercolpaert]

Sure! I must say we don't use this project in any production system but think it's an interesting reference implementation