feat(directives): Do not crash on missing map parameters.
feat(ng-model): support checkboxes
feat(ng-disabled): add ng-disable directive
fix(ng-bind): allow binding to non string values
chore: add TODO app demo
refactor: rename Event to ScopeEvent

To avoid name conflicts with dart:html.Event
refactor(ng-model): remote forgotten dump() statements
fix(MockHttp): Use the injector to create MockHttp
fix(ng-if): Re-enabled the ng-if test
fix(ng-if): Do not crash ng-click
feat(ng-if): Lazy create blocks for ng-if
feat(Http): UrlRewriter, HttpBackend for better tests.
fix(http): Fix a typo in HttpBackend
fix(block): Respect the shadow root options
feat(ng-include): basic implementation of ng-include directive
feat(http): Expose HttpRequest.request in Http
feat(tests): Only allow unittests to run in checked mode.
feat(http): Added a HttpResponse object
feat(compiler): Mapped attributes are snake-cased correctly.
feat: add bootstrapAngular to make bootstrap simple