Remove jquery dependency from measure example

examples/measure.html

@@ -5,8 +5,6 @@ shortdesc: Example of using the ol.interaction.Draw interaction to create a simp
 docs: >
   <p><i>NOTE: By default, length and area are calculated using the projected coordinates. This is not accurate for projections like Mercator where the projected meters do not correspond to meters on the ground. To get a standarized measurement across all projections, use the geodesic measures.</i></p>
 tags: "draw, edit, measure, vector"
-resources:
-  - https://code.jquery.com/jquery-1.11.2.min.js
 ---
 <div id="map" class="map"></div>
 <form class="form-inline">

examples/measure.js

@@ -117,7 +117,7 @@ var pointerMoveHandler = function(evt) {
   helpTooltipElement.innerHTML = helpMsg;
   helpTooltip.setPosition(evt.coordinate);
 
-  $(helpTooltipElement).removeClass('hidden');
+  helpTooltipElement.classList.remove('hidden');
 };
 
 
@@ -132,8 +132,8 @@ var map = new ol.Map({
 
 map.on('pointermove', pointerMoveHandler);
 
-$(map.getViewport()).on('mouseout', function() {
-  $(helpTooltipElement).addClass('hidden');
+map.getViewport().addEventListener('mouseout', function() {
+  helpTooltipElement.classList.add('hidden');
 });
 
 var typeSelect = document.getElementById('type');