Publish to npm when releasing.

Update the release script to execute `npm publish`.  The command will be
skipped if `npm whoami` fails or if the user is not listed by `npm owner ls`.

Closes #74.
Merge pull request #151 from nicksay/npm-publish

Publish to npm when releasing.
Cleanup spf.net.script and spf.net.style tests.

Minor adjustments to make the tests more consistent.

Progress on #60.
Merge pull request #150 from nicksay/resource-loading-streamline-tests

Cleanup spf.net.script and spf.net.style tests.