created tool class which keeps track of cursors, incorporates changeTool; made changelog data its own file

js/tools/_pencil.js

@@ -0,0 +1,17 @@
+
+new Tool('pencil', {
+	cursor: 'crosshair',
+	brushPreview: true,
+});
+
+
+new Tool('resizebrush', {
+	cursor: 'default',
+});
+
+
+//set as default tool
+var currentTool = tool.pencil;
+var currentToolTemp = tool.pencil;
+
+/*global Tool, tool*/