zpubsub: added one last example using a zproto-based test message.
Merge pull request #728 from lovmoen/master

zpubsub: added one last example using a zproto-based test message.
Merge pull request #729 from pmienk/master

Rewrite to nonrecursive make.
Correct make dist failure when asciidoc not installed, fix errors when asciidoc present.