Update broccoli-caching-writer dependents to allow linking fallback.

* Update broccoli-caching-writer to handle fallbacks if linking is not
  possible (for example in a vagrant box).
* Update broccoli-file-mover
* Update broccoli-file-remover
Merge pull request #1799 from rwjblue/update-to-enable-vagrant

Update broccoli-caching-writer dependents to allow linking fallback.
Update RELEASE.md
alphabetize
manually dedupe by hoisting to parent package.json
Opt out of bower analytics, to avoid prompt
Merge pull request #1805 from sandstrom/patch-1

Avoid issue where `ember init` stalls on fresh system
Update `core-object` with ignored `tests` folder
Merge pull request #1806 from twokul/new-core-object

Update `core-object` with ignored `tests` folder
Merge pull request #1803 from stefanpenner/dedupe

Dedupe
Automatically ignore tarballs.
Merge pull request #1808 from rwjblue/ignore-tarbals

Automatically ignore tarballs.
Clear require cache for config reloads.

Wrapping in a `Function` worked for simple `config/environment.js`
contents but breaks down in other scenarios that relied on the file
being evaluated in "nodeland".  The prior implementation prevented
custom `require`'s (to get the package name from the `package.json`
for instance).

Now we just clear the `require` cache to allow re-requiring the file
again.
Merge pull request #1809 from rwjblue/properly-clear-node-cache

Clear require cache for config reloads.
Add empty function to resource generator.

If we generate a resource there is a high probability that we want to
start adding routes to it too. Also it's really helpful to get the
index route by default.
Merge pull request #1817 from abuiles/expose-index-route

Add empty function to resource generator.
Add {{outlet}} by default when generating a route template.

After doing `ember g resource` the next step is normally to include
nested routes, adding an outlet by default makes sense for routes.
Merge pull request #1819 from abuiles/add-outlet-to-template

Add {{outlet}} by default when generating a route template.
Make all environments available from modules.
Merge pull request #1820 from rwjblue/make-all-environments-available

Make all environments available from modules.