Change script url
Update default version
Change vagrant parameters
Change wkhtmltox parameters
Add 'chrome' role
 Add readme and licence
Add protection in /hosts.allow, /hosts.deny for 'vagrant'
Add setting background color for 'grub'
Add 'ipv6' task
Change nfs configuration for 'vagrant' role
Add 'add_hosts' task to 'common' role
Add deleting files if dir contain its
Fix deleting files if dir contain its