old-ie gradients mess up rounding on connection status and user status

Unfortunately we lose some 3d-edness on these elements in IE9 and earlier.

The problem is described at http://stackoverflow.com/questions/6130235/ie9-rounded-corners-css-background-gradients-living-together and http://stackoverflow.com/questions/4692686/ie9-border-radius-and-background-gradient-bleeding

It's possible to work around with box-shadow (in the second link above) but it's a bit of a hack, and the graidents were quite subtle to begin with.

![jabbr-ie9-status](https://f.cloud.github.com/assets/1271535/379226/9e6787f6-a58d-11e2-85cb-152f32d7be8a.png)