[fixes #695] fix help command

the following now work correctly

ember help <commandName>
ember <commandName> —help
ember <commandName> -h
Fix package.json preprocessor dependencies not being included in the registry.
Merge pull request #703 from jakecraige/merge-preprocessed-devdependencies-and-dependencies

Fix package.json preprocessor dependencies not being included in the registry.
Fix JS regression in `app.import`.

We are simply using `pickFiles` here to ensure that the specific
directory is watched, we do not actually care about the destination
files.

Without this change specifying/modifying `vendor/` and passing it into
`EmberApp` would throw an error if the actual file did not exist on disk
Merge pull request #705 from rjackson/ensure-watched-directories-dont-blow

Fix JS regression in `app.import`.
Include body-parser back to the express server by default.

line up equals.
Merge pull request #708 from WMeldon/express-body-parser

Include body-parser back to the express server by default.
update testem version to fix  assertions
Sort dependencies using npm install --save
Merge pull request #717 from xtian/sort-deps

Sort dependencies using npm install --save
Merge pull request #714 from joesteele/update-testem

Update testem version to fix  assertions
Update CHANGELOG for #714.
bump v0.0.28 :tada:
Update CHANGELOG.md
Load vendor.css from index.html.
Merge pull request #728 from rjackson/load-vendor-css

Load vendor.css from index.html.
Allow testem port to be specified.
Merge pull request #729 from rjackson/pass-port-to-testem

Allow testem port to be specified.
Add `assets/vendor.css` to `tests/index.html`.
Use EMBER_ENV if specified.