Decreases severity of #99
Fixes #108

Closes #126

Note that this is more of a hotfix -- the underlying bug is in
Travel::Status::DE::HAFAS

(cherry picked from commit 5d8f6467dc00f03957784230983ed730ec421291)
Signed-off-by: Birte Kristina Friesel <derf@finalrewind.org>

locationSearch uses mgate.exe, just like the regular departure board.
similar_stops_p relies on ajax-getstop.exe which may become unavailable sooner
rather than later.

Still TODO: handle stations that have several EVAs