[JENKINS-21924] Support for Matrix Projects

I want post build scripts run also on matrix parent builds.
I added "Run also for matrix parent" checkbox, which make post builds run also for matrix parent builds.
![run_for_matrix](https://f.cloud.github.com/assets/3115961/2252689/0bfac040-9dad-11e3-9092-8742801d633a.png)