Update JS markdown tests.

IPython/html/tests/notebook/markdown.js

@@ -1,36 +1,36
 //
 // Test that a Markdown cell is rendered to HTML.
 //
 casper.notebook_test(function () {
     // Test JavaScript models.
     var output = this.evaluate(function () {
         IPython.notebook.to_markdown();
         var cell = IPython.notebook.get_selected_cell();
         cell.set_text('# Foo');
         cell.render();
         return cell.get_rendered();
     });
-    this.test.assertEquals(output, '<h1 id=\"foo\">Foo</h1>', 'Markdown JS API works.');
+    this.test.assertEquals(output.trim(), '<h1 id=\"foo\">Foo</h1>', 'Markdown JS API works.');
     
     // Test menubar entries.
     output = this.evaluate(function () {
         $('#to_code').mouseenter().click();
         $('#to_markdown').mouseenter().click();
         var cell = IPython.notebook.get_selected_cell();
         cell.set_text('# Foo');
         $('#run_cell').mouseenter().click();
         return cell.get_rendered();
     });
-    this.test.assertEquals(output, '<h1 id=\"foo\">Foo</h1>', 'Markdown menubar items work.');
+    this.test.assertEquals(output.trim(), '<h1 id=\"foo\">Foo</h1>', 'Markdown menubar items work.');
     
     // Test toolbar buttons.
     output = this.evaluate(function () {
         $('#cell_type').val('code').change();
         $('#cell_type').val('markdown').change();
         var cell = IPython.notebook.get_selected_cell();
         cell.set_text('# Foo');
         $('#run_b').click();
         return cell.get_rendered();
     });
-    this.test.assertEquals(output, '<h1 id=\"foo\">Foo</h1>', 'Markdown toolbar items work.');
+    this.test.assertEquals(output.trim(), '<h1 id=\"foo\">Foo</h1>', 'Markdown toolbar items work.');
 });