AngularJS + MetaJS implementation.

Please review first implementation of TodoMVC on lisp-family languages -- MetaJS. This example shows how to decrease source code side using well-known abilities of lisp-languages to generate code.

```
$ mocha allTests.js  --reporter spec --framework=metajs-angular

  TodoMVC - metajs-angular
    No Todos
      ✓ should hide #main and #footer (301ms)
    New Todo
      ✓ should allow me to add todo items (798ms)
      ✓ should clear text input field when an item is added (378ms)
      ✓ should append new items to the bottom of the list (1038ms)
      ✓ should trim text input (437ms)
      ✓ should show #main and #footer when items added (517ms)
    Mark all as completed
      ✓ should allow me to mark all items as completed (1332ms)
      ✓ should allow me to clear the completion state of all items (1806ms)
      ✓ complete all checkbox should update state when items are completed / cleared (1475ms)
    Item
      ✓ should allow me to mark items as complete (1224ms)
      ✓ should allow me to un-mark items as complete (1183ms)
      ✓ should allow me to edit an item (1711ms)
      ✓ should show the remove button on hover 
    Editing
      ✓ should hide other controls when editing (1177ms)
      ✓ should save edits on enter (1638ms)
      ✓ should save edits on blur (1886ms)
      ✓ should trim entered text (1705ms)
      ✓ should remove the item if an empty text string was entered (1451ms)
      ✓ should cancel edits on escape (1582ms)
    Counter
      ✓ should display the current number of todo items (708ms)
    Clear completed button
      ✓ should display the number of completed items (1384ms)
      ✓ should remove completed items when clicked (1389ms)
      ✓ should be hidden when there are no items that are completed (1384ms)
    Routing
      ✓ should allow me to display active items (1413ms)
      ✓ should respect the back button (1897ms)
      ✓ should allow me to display completed items (1342ms)
      ✓ should allow me to display all items (1600ms)
      ✓ should highlight the currently applied filter (1555ms)


  28 passing (2m)
```