playground: Regenerate with GopherJS 1.10-3 and Go 1.10.1 (on darwin/amd64).

The github.com/gopherjs/gopherjs/js and github.com/gopherjs/gopherjs/nosync
packages still need to be built and served as separate archives, because
the playground uses a custom compiler.ImportContext for loading all
packages from the server. The playground doesn't try to build them.

Regenerate with:

	go generate github.com/gopherjs/gopherjs.github.io/playground

Follows gopherjs/gopherjs#787.

Author: dmitshur