Updated homepage for 1.2

Closes #610
Fixes #605

AngularJS - Add a check for changes to prevent unneeded saves.

RE #635

Closes #646

Closes #630

removes un-used (and un-needed) shim for backbone.localStorage

Updating to latest official Polymer TodoMVC implementation

Backbone: trim edits

Upgrade to React 0.4, fully compliant with specs

Realtime: Addition for Firebase as a realtime framework

Marionette - Changes for issue #642 

Fixed issue #642
Couple of minor bug fixes

Update Brunch with Chaplin.

1. Add Bower integration. Since Brunch automatically concatenates all Bower stuff, we don’t need bower_components in repository (added to .gitignore, except of todomvc-common).
2. Update Brunch to 1.7.
    * Added automatic source maps generation, source maps are in repo too.
3. Update Chaplin to 0.10.
    * Remove `chaplin` module, switch to global variable.
    * Switch to new declarative events format.
    * Switch to controller compositions instead of static controllers.
    * Remove `application` since Chaplin now has this functionality by default.