Test server: Support ephemeral ports and specifying the host to bind.

Fix datafile_location global not being updated when called as a module
instead of as a script.

Remove duplicate server.serve_forever() call.

Fix adding int and string in VerifyTestComplete.




git-svn-id: http://google-safe-browsing.googlecode.com/svn/trunk@110 2195c2fd-d934-0410-ae3f-cd772a4098b8