Merge pull request #120 from INFN-Catania/master

Fixed liferay config for mysql
Still working on the liferay role
minor changes
Merge branch 'dev' of https://github.com/AAROC/ansible-for-grid into dev

Conflicts:
	Ansible/liferay-csgf.yml
Fixed problem with mysql privileges
Merge branch 'dev' of github.com:AAROC/DevOps