#1293 [HHQ-1831] Escalation actions need to be validated

[Hyperic Team]

http://jira.hyperic.com/browse/HHQ-1831
The free form email entry for escalations needs to be validated in some way. A user is allowed to enter:

foo@bar.com \n someotheremail@domain.com

This causes the dropdown for the Escalations schemes to be empty.