[krbdev.mit.edu #5724] NIM: FEATURE: APP: Default Identity Context Menu

[Jeffrey Altman via RT]

Attached is a image of the notification icon "set default" context menu.  

Identities with credentials are colored following the color schema used
in the application window (green, yellow, orange, red).  White
background means there are no credentials for the identity.  Grey is the
item currently selected with the mouse.

The identity with the check mark is the active default identity.