This reverts commit 64a9312.

Although Meteor runs fine on Node 4.5.0, node-gyp doesn't know how to
download libraries appropriate for RC releases, so it looks like we need
to hold off on this upgrade until it's officially out.

This gives us a reliable place for node-gyp to find the necessary headers
and libraries for compiling binary packages, instead of relying on the
accessibility of $HOME and/or $USERPROFILE.

The node-gyp tool uses `process.env.HOME || process.env.USERPROFILE` to
determine where it should install the .node-gyp directory containing Node
headers and libraries, and we now preinstall that directory at
dev_bundle/.node-gyp/, so (with this change) no download should be
necessary.

Follow-up to #7534.

These packages need to be installed when we run `npm install` in
`bundle/programs/server` (which this commit ensures), but they don't need
to be part of the dev bundle.

This package is depended upon by `cordova-lib`, and npm@3 hoists it to the
top-level dev_bundle/lib/node_modules directory.

We don't use this example app in Meteor, so we don't need it in the dev
bundle. If it is ever needed, developers can run

  meteor npm install -g cordova-app-hello-world

To include it in the dev bundle.

It would be really great if we could remove cordova-lib's extra copy of
npm, but that will probably have to wait until they update to npm@3.

https://nodejs.org/en/blog/release/v4.5.0/

https://github.com/npm/npm/blob/master/CHANGELOG.md#v3106-2016-07-07

Since we do not write .meteor-last-rebuild-version.json files when
developers run `meteor npm install ...`, this commit saves us from
unnecessarily rebuilding any freshly-installed binary npm dependencies
when Meteor starts.

See #7495. Still some decisions to be made:

 - Should we make --all-packages the default?
 - How should we deal with *new* indirect dependencies?
 - Should we do anything about underpinning indirect dependencies when updating?

* Add --no-release-check option to skip release check

* Add METEOR_NO_RELEASE_CHECK environment variable

Fixes #7661.