Add 'configure' task to 'ufw' role
Change 'configure' task in 'vagrant' role
Fix variable check if not defined
Change init.d file's syntax
Add configuration for 'apache' role
Add more default values for 'php' role
Add tweak for save running virtualboxes in 'virtualbox' role
Change configuration to be compatible with Apache 2.2 and 2.4
Merge remote-tracking branch 'upstream/master'