Ignore existing directory when creating on local storage

lib/fog/local/models/storage/directory.rb

@@ -40,7 +40,7 @@ module Fog
         def save
           requires :key
 
-          Dir.mkdir(path)
+          FileUtils.mkpath(path)
           true
         end
 

tests/local/models/directory_tests.rb

@@ -0,0 +1,16 @@
+Shindo.tests('Storage[:local] | directory', ["local"]) do
+
+  pending if Fog.mocking?
+
+  before do
+    @options = { :local_root => '~/.fog' }
+  end
+
+  tests('save') do
+    returns(true) do
+      connection = Fog::Storage::Local.new(@options)
+      connection.directories.create(:key => 'directory')
+      connection.directories.create(:key => 'directory')
+    end
+  end
+end