Document upgrading apps linked to master

Make upgrade instructions more concise

Get rid of extra newline

Fix typo

Small edit: specify in project dir
Merge pull request #610 from sohara/document_upgrade_master

Document upgrading apps linked to master
Update broccoli-jshint.

Updated version looks into the root of the input tree for the jshintrc.
Do not globally ignore `require` and `requirejs` for tests.
Merge pull request #618 from rjackson/update-jshint

Update broccoli-jshint.
Merge pull request #619 from rjackson/dont-allow-require

Do not globally ignore `require` and `requirejs` for tests.
Require rimraf 2.2.8.

See https://github.com/isaacs/rimraf/commit/1b612ed9370b5a3d0de9bb0ba1a32ea1dc8edba1 for details.
Update to broccoli-export-tree 0.3.1.

Requires rimraf 2.2.8 to prevent massive TROLLING.

https://github.com/isaacs/rimraf/commit/1b612ed9370b5a3d0de9bb0ba1a32ea1dc8edba1
Add missing links to the CHANGELOG
Merge pull request #620 from tonywok/patch-2

Add missing links to the CHANGELOG
Do not allow application named `ember`.
Merge pull request #626 from rjackson/disallow-ember-name

Do not allow application named `ember`.
Update jQuery.
[fixes #519] blueprint package.json ember-cli version to reduce self troll-age
Merge pull request #630 from xtian/update-jquery

Update jQuery.
Add branch and SHA to version output when running non-npm builds.
Merge pull request #631 from stefanpenner/template-ember-cli-version

[fixes #519] blueprint package.json ember-cli version to reduce self tro...
Merge pull request #634 from rjackson/add-sha-versioning

Add branch and SHA to version output when running non-npm builds.
bump v0.0.26 :tada:
bump v0.0.27 :tada: