add "Bridge" alias for man_made=bridge, closes #632

also reverts lowered match score from https://github.com/openstreetmap/iD/commit/67f7995559b6eddb98f756b0cddc583b70d9092c

data/presets/man_made/bridge.json

@@ -31,5 +31,7 @@
         "value": "bridge"
     },
     "name": "Bridge Area",
-    "matchScore": 0.85
+    "aliases": [
+        "Bridge"
+    ]
 }