- handle Ctrl+C better
- actually show error messages sent by network peers
- gracefully handle missing test cases
- pull test.py and utils.py during server setup (temporary fix for testcfg import issue)

Review URL: https://codereview.chromium.org/11036005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12648 ce2b1a6d-e550-0410-aec6-3dcde31c8c00