Disable the sld example and its tests.
The geoserver we were using has gone offline.  Until it comes back
online or we choose a different geoserver, this example will not work
and will cause tests to fail.
MODIFY
examples/sld/example.json
examples/sld/example.json
"about": {
"text": "Rendering tiles from a WMS server by customizing the style."
},
- "tests": [{
+ "disabled": true,
+ "disable_tests": [{
"description": "data is loaded from the WMS source",
"idle": ["$('#map.geojs-map').data('data-geojs-map').onIdle"],
"tests": [

Disable the sld example and its tests.

The geoserver we were using has gone offline.  Until it comes back
online or we choose a different geoserver, this example will not work
and will cause tests to fail.