Merge pull request #47 from INFN-Catania/master

Fixed iptables also for destination nat
Update README.md
Working on shibboleth role
Merge branch 'master' of https://github.com/AAROC/ansible-for-grid
Update readme
Create init.pp
Create job.pp
Create script.pp
Create job.erb
Create client.pp
Create parser.pp
Create README
Create params.pp
Update params.pp
Update params.pp
Create client.pp
Rename client.pp to client.erb
Create parser.erb
Create receiver.erb
Create sender.erb