pull up r20032 from trunk

pull up r20032 from trunk

 r20032@cathode-dark-space:  jaltman | 2007-10-01 01:29:38 -0400
 ticket: 5783

 The credentials display in Network Identity Manager colors the
 background of identity headings based on the expiration state of the
 credentials that belong to the identity.

 This patch changes the behavior to color these headings based on the
 existence and expiration state of identity credentials.  With this
 change, only identities that have valid identity credentials will
 appear in green.

 The same logic is used when drawing the menu items in the "Set
 default" sub-menu in the notification icon.

ticket: 5783
version_fixed: 1.6.3

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-6@20073 dc483132-0cff-0310-8789-dd5450dbe970