Update OpenLayers to version 5.3.0

Author: fredj

CHANGES.md

@@ -8,6 +8,7 @@
 * Changes
   * CanvasPattern and CanvasGradient styles are now handled for polygons.
   * Port to Cesium 1.51.
+  * Port to OpenLayers 5.3.0.
 
 # v 2.4 - 2018-10-01
 

package.json

@@ -36,7 +36,7 @@
     "jsdoc": "3.5.5",
     "ls": "0.2.1",
     "nomnom": "1.8.1",
-    "ol": "5.2.0",
+    "ol": "5.3.0",
     "proj4": "2.4.4",
     "temp": "0.8.3",
     "webpack": "^4.20.2",