[FIXED JENKINS-16356] Show seed job and template job info in the generated job

Covers JENKINS-16356 and JENKINS-16357.

Sample result:
![image](https://cloud.githubusercontent.com/assets/1336981/5404267/22711652-818d-11e4-815a-b2f4a4aa0e0c.png)

The seed job may be in a folder, use getFullName to retrieve the name. The template job name may be relative depending on the lookup strategy, you need to determine the full name.