spec: fix occasional spec failure

Change-Id: Ic3a9ba5e0599fb551a98ddadb24ad311ab9786d5
Reviewed-on: https://gerrit.instructure.com/13691
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jake Sorce <jake@instructure.com>

spec/selenium/eportfolios_spec.rb

@@ -164,6 +164,7 @@ describe "eportfolios" do
           f(comment_public).click
           is_checked(comment_public).should be_true
           submit_form(".form_content")
+          wait_for_ajax_requests
           f(".section_content b").text.should eql "student"
           entry_verifier ({:section_type => "html", :content => @html_content})
           refresh_page