Fix hayward

bt.nim

@@ -41,7 +41,7 @@ proc parseStation(station: string): string =
     of "mcaurthur", "mcaurther": "mcar"
     of "montgomery": "mont"
     of "walnut": "wcrk"
-    of "hwd", "hayward": "haywd"
+    of "hwd", "hayward": "hayw"
     of "sfo": "sfia"
     of "oak": "oakl"
     of "orinda": "orin"