detect fedora 19 and 20
Merge pull request #2742 from ryansb/FedoraDetection

Correctly detect fedora 19 and 20
providers/virtualbox: fix package [GH-2739]
changelog for 1.4.3
v1.4.3
Merge branch '1.4.3'

Conflicts:
	CHANGELOG.md
	lib/vagrant/version.rb
provisioners/puppet: synced_folder_type [GH-2709]
provisioners/chef: synced_folder_type
website/docs: document synced_folder_type for chef
provisioners/puppet: alphabetize
website/docs: document puppet options