Add new /vessel/track endpoints.

This is a variation on /navdata but returns data more suitable
for plotting vessel tracks on the map.

lib/www/server/api/index.js

@@ -311,6 +311,30 @@ app.map({
 			get: [ mw.etag.noSave, mw.gis.navdata.get ]
 		}
 	},
+	'/vessel/track': {
+		get: [ /*mw.etag.noSave,*/ mw.vessel.track.get ], // JSON array
+		'/line': {
+			get: [ // GeoJSON Feature: type = LineString
+				//mw.etag.noSave,
+				(req, res, next) => { req.query.geojson = 'LineString'; next(); },
+				mw.vessel.track.get
+			]
+		},
+		'/point': {
+			get: [ // GeoJSON FeatureCollection: feature types = Point
+				//mw.etag.noSave,
+				(req, res, next) => { req.query.geojson = 'Point'; next(); },
+				mw.vessel.track.get
+			]
+		},
+		'/points': {
+			get: [ // JSON array of (Feature: type = Point)
+				mw.etag.noSave,
+				(req, res, next) => { req.query.geojson = true; next(); },
+				mw.vessel.track.get
+			],
+		},
+	},
 	'/info/': {
 		':path(*)': {
 			get: [ mw.auth.operations, mw.info.get ],