Merge pull request #2616 from fredj/attributions-target

Target for attribution links differs between maps

src/ol/control/attributioncontrol.js

@@ -312,8 +312,7 @@ ol.control.Attribution.prototype.insertLogos_ = function(frameState) {
         logoElement = image;
       } else {
         logoElement = goog.dom.createDom(goog.dom.TagName.A, {
-          'href': logoValue,
-          'target': '_blank'
+          'href': logoValue
         });
         logoElement.appendChild(image);
       }

src/ol/source/bingmapssource.js

@@ -63,7 +63,7 @@ goog.inherits(ol.source.BingMaps, ol.source.TileImage);
  * @api
  */
 ol.source.BingMaps.TOS_ATTRIBUTION = new ol.Attribution({
-  html: '<a class="ol-attribution-bing-tos" target="_blank" ' +
+  html: '<a class="ol-attribution-bing-tos" ' +
       'href="http://www.microsoft.com/maps/product/terms.html">' +
       'Terms of Use</a>'
 });

src/ol/source/mapquestsource.js

@@ -47,8 +47,7 @@ goog.inherits(ol.source.MapQuest, ol.source.XYZ);
  * @type {ol.Attribution}
  */
 ol.source.MapQuest.TILE_ATTRIBUTION = new ol.Attribution({
-  html: 'Tiles Courtesy of ' +
-      '<a href="http://www.mapquest.com/" target="_blank">MapQuest</a>'
+  html: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a>'
 });