Move default chef solo configuration to the chef solo provisioner

config/default.rb

@@ -16,14 +16,8 @@ Vagrant::Config.run do |config|
   config.vm.project_directory = "/vagrant"
   config.vm.forward_port("ssh", 22, 2222)
   config.vm.disk_image_format = 'VMDK'
+  config.vm.provisioner = nil
 
   config.package.name = 'vagrant'
   config.package.extension = '.box'
-
-  config.chef_solo.cookbooks_path = "cookbooks"
-  config.chef_solo.provisioning_path = "/tmp/vagrant-chef"
-  config.chef_solo.json = {
-    :instance_role => "vagrant",
-    :recipes => ["vagrant_main"]
-  }
 end

lib/vagrant/provisioners/chef_solo.rb

@@ -8,6 +8,15 @@ module Vagrant
         attr_accessor :provisioning_path
         attr_accessor :json
 
+        def initialize
+          @cookbooks_path = "cookbooks"
+          @provisioning_path = "/tmp/vagrant-chef"
+          @json = {
+            :instance_role => "vagrant",
+            :recipes => ["vagrant_main"]
+          }
+        end
+
         def to_json
           # Overridden so that the 'json' key could be removed, since its just
           # merged into the config anyways