Remove use of expectAsync().
Add --client-file-name to apigen.
Pass fileName.
Merge pull request #155 from alxhub/fix-expectAsync

Remove use of expectAsync().
Merge pull request #154 from alxhub/client-file-name

Add --client-file-name to apigen, allowing control over the output client file name.
Merge branch 'master' into pub-server