Add test to verify correct double click focus

Fixes #1560

firebase-angular: Correct directive name -- `todoEscape`

Obviously misprinted.
Miraculously worked overwriting the other `todoBlur` directive, and
"stealing" `todo-escape` attribute.

Removed globals, readability, simplified or removed components - replace PR #1559

Using the native `ng-keydown` instead

Updated to Angular 2 beta

Removed redundant steps due to modules that have been removed (spotted this by doing a clean install!)

Updated app to Angular 2 beta
  + Removed @View decorator
  + Changed directives from snake-case to camel-case
  + Added new dependency to Rx
  + Removed olf dependency to traceur (not sure this was actually needed?)

Changes to build process
 + Moved typescript configration to tsconfig.json in order to make it a little easier to understand / visualise

Updated README

typescript-backbone: Add routing

Fixes #1487

Fixes Long Task Overflow

spine: Fix the "mark all complete" checkbox

Fixes #795

sidebar links text fixes when framework + Require.js

ref #795

xref #1538 #1539

angularjs-perf: Fix the "mark all complete" checkbox

Ref #795

Ref #789

thorax: Cancel editing with the Escape key

knockoutjs_require: Cancel edits using Escape key

Ref #789

This roughly follows the pattern in examples/angularjs which already had the
ability to use Esc.