Add more options for surveys

* Survey period constraints
* Add abilities
* Enforce required questions
* Update survey_submssion updated_at
* Do a full match of possible answer and user reply

app/views/admin/surveys/_survey_question_title.html.haml

@@ -0,0 +1,22 @@
+%span.badge
+  = question_index
+= survey_question.title
+
+- if survey_question.multiple_choice?
+  ( Select
+  - if survey_question.min_choices != survey_question.max_choices
+    a minimum of
+  = survey_question.min_choices
+  - if survey_question.min_choices != survey_question.max_choices
+    and a maximum of
+    = survey_question.max_choices
+  choices )
+- if survey_question.mandatory
+  %span.fa.fa-asterisk.text-danger
+- if can? :edit, @survey
+  %p.pull-right
+    = "(#{survey_question.survey_replies.count} replies)"
+    = link_to edit_admin_conference_survey_survey_question_path(@conference.short_title, @survey, survey_question) do
+      %span.fa.fa-edit
+    = link_to admin_conference_survey_survey_question_path(@conference.short_title, @survey, survey_question), method: :delete, data: { confirm: 'Are you sure you want to delete this question?' } do
+      %span.fa.fa-times