#4081 [HHQ-2994] Add "Test SMTP" feature

[Hyperic Team]

http://jira.hyperic.com/browse/HHQ-2994
Ideally, there would be a button in the Admin tab to perform a "Send Test Email" to:

1) Validate the SMTP configuration in hq-server.conf file

2) Verify any changes applied to the "From email address" HQ Server setting.