now when a new session is created by someone, the session tab is red

Ignore-this: 9ca869e45b8613e63af672d65467e11

It makes it easier to see which session is new.

darcs-hash:20130412023229-c21fe-dd219b78be1b089bf9b84e9414c37be666326bae
added timestamps to the alerts

Ignore-this: 62e89dd65a4e1058f1a0c27b7c4c9444

darcs-hash:20130412023428-c21fe-11b08c53577816c9b857c72080561870ac8b4f15