Revert changeset 122426996, per comment of Mister Kanister
Add 221 Neuchâtel => Buttes service and master relation
Correctly map line 221 Buttes => Neuchâtel as single direction with stops
Add elements of line 219 (Auvernier - Les Verrières) to a relation
Finish changing operator of Travers-Buttes line to "TransN"
Mark Fleurier - St-Sulpice as line 222
Mark Travers - Buttes as line 221
Fix tracks layout at Buttes railway station
Continue route to Frasne and change its number to 221
Onde Verte line 221 does not run to Pontarlier; only Buttes. Also add missing ways to the relation
Mark Auvernier - Les Verrières as line 219
Railway signals between Le Locle and Col-des-Roches
Railway signal types and some numbers at Biel/Bienne
Road realignment between Twann and Tüscherz
Railway signals and road alignment between Tüscherz and Alfermée
Mark La Chaux-de-Fonds - Les Ponts-de-Martel as line 234
Road and paths realignment between Twann and Wingreis
Railway signals and track alignment between Twann and Tüscherz
Mark Le Locle - Les Brenets as line 233