[JENKINS-22187] Support multiple actions

[JENKINS-22187] (https://issues.jenkins-ci.org/browse/JENKINS-22187)

Now support multiple actions for a condition.

![flexiblepublishmultipleactions](https://cloud.githubusercontent.com/assets/3115961/4853893/e0fc5a9c-608a-11e4-97b3-fa7086196642.png)

There are many "Delete" buttons and that's a little confusing...