statsd only contains version information for daisy frontends

[Brian Murray]

We are missing revision number information in statsd for the daisy retracers and errors frontends.

This code from diasy/metrics.py does the work, we just need to call it from the retracer code and add something similar for the errors frontends.

def revno(namespace='daisy'):
    from daisy.version import version_info
    import socket
    if 'revno' in version_info:
        m = '%s.version.daisy' % socket.gethostname()
        get_metrics(namespace).gauge(m, version_info['revno'])

[Brian Murray (brian-murray)]

This has been rolled out to the retracers and a graph for their versions now exists.

[Brian Murray (brian-murray)]

The errors revision numbers aren't showing up in statsd.