first working spreadsheet directive

Author: Brad Miller

runestone/dragndrop/css/dragndrop.css

@@ -1,4 +1,4 @@
-.draggable {
+.rsdraggable {
     margin-left: 2%;
     margin-top: 5px;
     display:inline;

runestone/dragndrop/js/dragndrop.js

@@ -87,11 +87,11 @@ DragNDrop.prototype.createNewElements = function () {
     this.containerDiv.appendChild(this.dragDropWrapDiv);
 
     this.draggableDiv = document.createElement("div");
-    $(this.draggableDiv).addClass("draggable dragzone");
+    $(this.draggableDiv).addClass("rsdraggable dragzone");
     this.addDragDivListeners();
 
     this.dropZoneDiv = document.createElement("div");
-    $(this.dropZoneDiv).addClass("draggable");
+    $(this.dropZoneDiv).addClass("rsdraggable");
     this.dragDropWrapDiv.appendChild(this.draggableDiv);
     this.dragDropWrapDiv.appendChild(this.dropZoneDiv);
 

runestone/spreadsheet/__init__.py

@@ -0,0 +1 @@
+from .spreadsheet import *