Clean up accidentally introduced hard tabs in JS code.

IPython/frontend/html/notebook/static/js/codecell.js

@@ -90,7 +90,7 b' var IPython = (function (IPython) {'
         } else if (event.keyCode === 76 && event.ctrlKey && event.shiftKey
 		   && event.type == 'keydown') {
             // toggle line numbers with Ctrl-Shift-L
-	    this.toggle_line_numbers()
+            this.toggle_line_numbers();
         }
 	else {
             // keypress/keyup also trigger on TAB press, and we don't want to

IPython/frontend/html/notebook/templates/notebook.html

@@ -278,5 +278,3 b''
 </body>
 
 </html>
-
-