Add puppet to packages included in preseed file. Replace openssh-server with ssh metapackage.
Merge pull request #15 from msuriar/master

Add puppet to packages included in preseed file. Replace openssh-server ...
Remove non-existent ubuntu-server tasksel task.

Closes #16.
Merge pull request #17 from msuriar/master

Remove non-existent ubuntu-server tasksel task.
UPdate progress