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.

refactor to reflect logic on line 62

Remove ternary expressions

A more readable and scalable approach

Update index.html

Updated YUI seed file

Refine selector by providing a context

Fixing #617

angularjs: add escape behavior

SAPUI5: bug fixes (tab preserves todo changes, enter always finishes editing)

SAPUI5: remove unneeded libraries from bootstrap

If the script loader is triggered after loading the stylesheet, some of our
overrides don't apply.

Ref #620

Add jQuery annotated source

I suggest adding annotated source to the readme, as it seems helpful to understand how most of the things work.

(flight) bug with clearCompleted.