fixes issue#1313 ~ Creating user via Aws.iam.users ignores :path

lib/fog/aws/models/iam/user.rb

@@ -13,7 +13,7 @@ module Fog
         
         def save
           requires :id
-          data = connection.create_user(id).body['User']
+          data = connection.create_user(id, path).body['User']
           merge_attributes(data)
           true
         end

tests/aws/models/iam/users_tests.rb

@@ -4,12 +4,20 @@ Shindo.tests("Fog::Compute[:iam] | users", ['aws','iam']) do
   @iam = Fog::AWS[:iam]
   @user_one_name = 'fake_user_one'
   @user_two_name = 'fake_user_two'
+
+  @user_three_name = 'fake_user_three'
+  @user_three_path = '/path/to/fake_user_three/'
   
   tests('#create').succeeds do
     @user_one = @iam.users.create(:id => @user_one_name)
     @user_one.id == @user_one_name
   end
-  
+
+  tests('#create', 'assigns path').succeeds do
+    @user_three = @iam.users.create(:id => @user_three_name, :path => @user_three_path)
+    @user_three.path == @user_three_path
+  end
+
   tests('#all','there is only one user').succeeds do
     @iam.users.size == 1
   end