Fix QA builds failing due to change in new project page behavior

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21386 re-introduced
the explicit creation of the project name separate from the project path.
Filling in the name does automatically populate the path, but the reverse
is not true. We now fill in the name instead of the path.

Closes https://gitlab.com/gitlab-org/gitlab-qa/issues/322

qa/qa/page/project/new.rb

@@ -11,6 +11,7 @@ module QA
         view 'app/views/projects/_new_project_fields.html.haml' do
           element :project_namespace_select
           element :project_namespace_field, 'namespaces_options'
+          element :project_name, 'text_field :name'
           element :project_path, 'text_field :path'
           element :project_description, 'text_area :description'
           element :project_create_button, "submit 'Create project'"
@@ -32,7 +33,7 @@ module QA
         end
 
         def choose_name(name)
-          fill_in 'project_path', with: name
+          fill_in 'project_name', with: name
         end
 
         def add_description(description)