Update to use current ansible version (1.7.2)
Merge pull request from John Morrissey (https://github.com/jwm)
Update playbooks to work with Ansible 1.7.2
Fix playbooks for slurm/precise
More bugfix
Fix gluster playbooks
Fix core-site.xml file not correctly parsed by hadoop
Fix more playbooks
Merge branch 'ansible-1.6'
Fix typo
Add support for *extending* a gluster filesystem
Do not look for `is_ubuntu_or_debian` when you are looking for a specific ubuntu version...
Simplify `when:` conditional
Include fix from kern3020 (https://github.com/kern3020) for issue #117: "why is an Ubuntu task run on a debian system?"
Do not use '{{' when it's not needed