Update CHANGELOG.md

Fix typo.
Merge pull request #336 from jbrown/patch-1

Update CHANGELOG.md
use load-initializer vendor'd package

see https://github.com/stefanpenner/ember-app-kit/pull/588
Merge pull request #337 from ghedamat/mattia/test-initializers

use ember/load-initializer vendor'd package
Fixed typo in config/environment.js
Merge pull request #338 from somebody32/master

Small typo fix in config/environment.js
updates changelog to reflect #337
Merge pull request #340 from fsmanuel/master

updates changelog to reflect #337
Add notations about related components.

Make it easier for people to both contribute and identify where issues might be in their ember-cli applications by noting additional dependencies.
Merge pull request #341 from nathanhammond/patch-1

Add notations about related components.
extracts vendored shims into bower package
updates changelog
Merge pull request #342 from fsmanuel/extract-shims

extracts vendored shims into bower package
Correct broccoli-bower version number typo
Merge pull request #345 from tonywok/patch-1

Correct broccoli-bower version number typo
Fix issue where app.js files are appended to tests.js
Merge pull request #347 from machty/legacy-test-files

Fix issue where app.js files are appended to tests.js
update read me for  #347
Restructure internals: Introduce fixed structure commands and tasks
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