Expand relative paths for settings?

[petemounce]

https://github.com/golang/sublime-build/blob/master/docs/configuration.md#global-sublime-text-settings suggests that paths (for, for example, GOPATH) should be absolute (though I haven't tested whether this is true).

This prevents the project-specific settings file from being source controllable, since different people will probably put code in different places.

It would be great if relative paths were expanded to become absolute, so they can be used and the project specific settings file can contain these settings, user-agnostic.