added train route Regional Exprés 18074
small changes for Regional Exprés route
completed Intercities from Pamplona to Barcelona
completed Media Distancia from Pamplona to Zaragoza
completed Alvia from Pamplona to Madrid
completed Alvia 00530, 00533, 00534, 00537 from Irun to Barcelona
completed Alvia 00621, 00626 from Vigo to Barcelona
completed Alvia 00664, 00661 from Gijón to Barcelona
added León and Sahagún train stations to route Alvia 00664
modified Léon station to building=train_station
changes reverted, deleted route_master, causing conflict in reversion
changes reverted, deleted route_master, causing conflict in reversion
changes reverted, route relations
changes reverted, route relations
added ways to route Ochagavía - Pamplona