Enhancement: Lowercase DS100

[phil-cd]

When entering DS100 on the main page to check-in on a train it only works when entering the DS100 in upper case letters. So "KAW" works for Aachen West but "kaw" does not work.
Since every DS100 is written in upper case there should not be any conflicts when also accepting them in lower case.

[derf]

There are conflicts, they're just rare. For example, "aha" is both a valid station name (Aha / RA) and DS100 code (Harblek / AHA).

Accepting lowercase DS100 codes when there is no station with a matching name seems like an acceptable solution; I'll consider that.

[marudor]

Example for UX can be seen at marudor.de
Difference: my URLs always use the station Name. => no URL conflict.