Publish to NuGet.

[rwjblue]

• Need to add .nuspec file.
• Need permissions to push updates for @fivetanley and @rjackson.
• Need to add upload of new package to publishing process.

/cc @ntotten

[ntotten]

You can find the source for my existing ember package here: https://github.com/ntotten/NuGetPackages

Also, let me know the nuget.org usernames I should make owners of the packages as well.