Remove cloud9 and Codio links in the readme

Fix #1428
Fix #957

Changing redraw strategy while handling input events

The app has been down for multiple years, was left unmaintained for
really long and is outdated in many ways. Thus, we're (temporarily)
removing it. If somebody comes in, volunteers to fix the problems and we
find a place to host it.

We already decided earlier to drop it from the homepage.
Ref 7f59ef71

Fixes gh-546
Fixes gh-593

Update readme to include a note about unminified libs

Fix #378

Some CSS in todomvc-app-css has to be replicated in the example itself
as some selectors have to differ. This updates it to the last version.

Fix #1418

issues.

Fix style issues: missing spaces.

Fix avoid double deletion when handling empty input and the following blur event.

Update backbone to 2.0

As the author doesn't respond anymore and the framework hasn't been
updated for really long.

Ref gh-1209

* backbone
* jquery
* underscore
* todomvc common js

fix: Finish renaming stopEditing to saveEditing

Fix #1409

Fix #1410

Do not show number of items completed in the Clear completed button.

See https://github.com/tastejs/todomvc-app-css#6

Re #1417

https://docs.npmjs.com/misc/faq#is-it-npm-or-npm-or-npm

npm version must be >=2.0.0

In order to support passing arguments to npm, you need to be running npm version 2.0.0 or greater:
http://blog.npmjs.org/post/98131109725/npm200

Update instructions with how to check and how to update npm.

fix indentation in marionette package

Update readme.md

Spelling correction

Fix vanillajs spec compliance error

found in: #1403

Remove helper and view files from tests

I'm in the process of rewriting/tooling this in ES6 for a workshop I'm doing and I realized that you don't actually need either of these files for the tests to run 👍

Fix jscs issues found in #1403...

I am so sorry that this results in a bunch of whitespace change
and git history nuking 💣

(follow-up to 233db94c)

This was still in the `src/js/lib` folder, while it can perfectly use
Bower to pull it in. In the future that will work fine with npm too.

When moving this app to use bower, backbone.localStorage simply wasn't
published on Bower yet.