Allow Email Address substitution in notification recipients list

[gschueler]

• Issue Type: Feature
• Rundeck version: 1.4.2.1
• JDK Version: sun 1.6.0_22
• Server OS: CentOS 5.8

* Install type: Yum-rpm

Issue:

Allow logged in user email address lookup/expansion in email notification.

Example:
notification:
onfailure:
recipients: [email protected],${execution.author.email},[email protected]

• If execution.author.email lookup returns no results or cannot be found for some reason, ignore it.
• If the only recipient address uses this lookup but the lookup fails for any reason, use framework default or don't email.

_Please excuse my ignorance if execution._ isn't the correct variable root. I did a quick scanning of the code to look for this feature and found execution.author so I'm using that.*

original LH ticket

Original Creator: Nate Faerber