small info about annotator details is available in select anntoators dialog

CHANGELOG

@@ -2,6 +2,8 @@ minerva (14.0.0~beta.0) unstable; urgency=low
   * Small improvement: sorting by columns that doesn't make sense in admin
     panel is disabled (#895)
   * Small improvement: version of minerva is visible in map browser panel
+  * Small improvement: small info about annotator details is available in 
+    select anntoators dialog (#923)
   * Small improvement: CellDesigner layers are always visualized as pathways 
     (#813)
   * Small improvement: setting "Modify project| checkbox automatically select

frontend-js/src/main/js/gui/admin/ChooseAnnotatorsDialog.js

@@ -55,7 +55,10 @@ ChooseAnnotatorsDialog.prototype.createGui = function () {
   var annotatorsDiv = Functions.createElement({
     type: "div",
     style: "display:table-cell;width:100%;height:100%;position:relative",
-    content: "<div style='height:100%;width:100%;overflow-y:auto;position:absolute;left:0;top:0'><div name='annotatorListBox'></div><div class='minerva-annotators-params'></div></div>",
+    content: "<div style='height:100%;width:100%;overflow-y:auto;position:absolute;left:0;top:0'>" +
+      "<div name='annotatorListBox'></div>" +
+      "<div class='minerva-annotators-params'></div>" +
+      "</div>",
     xss: false
   });
   content.appendChild(annotatorsDiv);
@@ -159,6 +162,11 @@ ChooseAnnotatorsDialog.prototype.setElementType = function (elementType) {
         }
       }
     });
+    element.appendChild(Functions.createElement({
+      type: "div",
+      style: "position:absolute; right:20px; top:20px; width: 180px; border: 1px solid #efefef",
+      content: "Please click on selected annotator to display details at the bottom"
+    }));
     element.appendChild(copyFromButton);
     var copyFromSelect = Functions.createElement({type: "select", style: "margin:5px"});
     element.appendChild(copyFromSelect);