Ability to choose a user/group for synced_folders
Merge branch 'syncfolder' of https://github.com/christoph-kluge/puphpet into christoph-kluge-syncfolder

Conflicts:
	src/Puphpet/Extension/VagrantfileLocalBundle/Resources/views/manifest/VagrantfileLocal.rb.twig
Sets folder owner/group fields to hidden; #1080