remove submodule elasticluster/providers/ansible-playbooks
Merge commit '431913f4dc2657822e909456347c4c96e1508980' as 'elasticluster/providers/ansible-playbooks'
Squashed 'elasticluster/providers/ansible-playbooks/' content from commit 58c1f1d

git-subtree-dir: elasticluster/providers/ansible-playbooks
git-subtree-split: 58c1f1d16033b6722cb80f0ec7d2b13a1bd6dd4c
Update `Installing from github` page and remove any reference to git
`submodule`, as we are now using `git subtrees` instead
Remove reference to `submodule`
Squashed 'elasticluster/providers/ansible-playbooks/' changes from 58c1f1d..a5ab13f

a5ab13f Merge commit 'b1e8f278f554a4255d31d4fcf13e7537d7310d5a' as 'openstack_modules'
b1e8f27 Squashed 'openstack_modules/' content from commit 7f08c12
5e37edf Remove submodule openstack_modules

git-subtree-dir: elasticluster/providers/ansible-playbooks
git-subtree-split: a5ab13f89cab61910ac9052c9a38fab86b618756
Merge commit '28e1a98b6e5150c6c75cc0d3af930c117f66ef09'
modified:   elasticluster/providers/ansible-playbooks/roles/slurm/tasks/munge.yml
- Munge package (hence slurm) is broken on Ubuntu 14.04. This is a fix (by Riccardo) of
  respective playbook as according to
  https://code.google.com/p/munge/issues/detail?id=31