update discussion forums views to add accessibility information and add hidden…

update discussion forums views to add accessibility information and add hidden accessibilty class to discussion scss, this comprises adding comments count and votes count verbiage and vote call to action

lms/templates/discussion/_single_thread.html

@@ -11,7 +11,7 @@
       <div class="group-visibility-label">${_("This post visible only to group {group}.").format(group=cohort_dictionary[thread['group_id']])} </div>
     %endif
       
-        <a href="#" class="vote-btn discussion-vote discussion-vote-up"><span class="plus-icon">+</span> <span class='votes-count-number'>${thread['votes']['up_count']}</span></a>
+          <a href="#" class="vote-btn discussion-vote discussion-vote-up"><span class="plus-icon">+</span> <span class='votes-count-number'>${thread['votes']['up_count']}<span class="sr">votes (click to vote)</span></span></a>
       <h1>${thread['title']}</h1>
       <p class="posted-details">
         <span class="timeago" title="${thread['created_at'] | h}">sometime</span> by

lms/templates/discussion/_underscore_templates.html

@@ -33,7 +33,7 @@
               ${"<% }  %>"}      
       
           <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote" data-tooltip="vote">
-          <span class="plus-icon">+</span> <span class='votes-count-number'>${'<%- votes["up_count"] %>'}</span></a>
+          <span class="plus-icon">+</span> <span class='votes-count-number'>${'<%- votes["up_count"] %>'}<span class="sr">votes (click to vote)</span></span></a>
           <h1>${'<%- title %>'}</h1>
           <p class="posted-details">
               ${"<% if (obj.username) { %>"}
@@ -118,7 +118,7 @@
 
 <script type="text/template" id="thread-response-show-template">
     <header class="response-local">
-        <a href="javascript:void(0)" class="vote-btn" data-tooltip="vote"><span class="plus-icon"></span><span class="votes-count-number">${"<%- votes['up_count'] %>"}</span></a>
+        <a href="javascript:void(0)" class="vote-btn" data-tooltip="vote"><span class="plus-icon"></span><span class="votes-count-number">${"<%- votes['up_count'] %>"}<span class="sr">votes (click to vote)</span></span></a>
         <a href="javascript:void(0)" class="endorse-btn${'<% if (endorsed) { %> is-endorsed<% } %>'} action-endorse" style="cursor: default; display: none;" data-tooltip="endorse"><span class="check-icon" style="pointer-events: none; "></span></a>
         ${"<% if (obj.username) { %>"}
         <a href="${'<%- user_url %>'}" class="posted-by">${'<%- username %>'}</a>
@@ -165,11 +165,11 @@
     <a href="${'<%- id %>'}" data-id="${'<%- id %>'}">
         <span class="title">${"<%- title %>"}</span>
         ${"<% if (unread_comments_count > 0) { %>"}
-            <span class="comments-count unread" data-tooltip="${"<%- unread_comments_count %>"} new comment${"<%- unread_comments_count > 1 ? 's' : '' %>"}">${"<%- comments_count %>"}</span>
+            <span class="comments-count unread" data-tooltip="${"<%- unread_comments_count %>"} new comment${"<%- unread_comments_count > 1 ? 's' : '' %>"}">${"<%- comments_count %>"} <span class="sr">comments</span></span>
         ${"<% } else { %>"}
-            <span class="comments-count">${"<%- comments_count %>"}</span>
+            <span class="comments-count">${"<%- comments_count %>"}<span class="sr">comments</span></span>
         ${"<% } %>"}
-        <span class="votes-count">+${"<%- votes['up_count'] %>"}</span>
+        <span class="votes-count">+${"<%- votes['up_count'] %>"}<span class="sr">votes</span></span>
     </a>
 </script>
 <script type="text/template" id="discussion-home">

lms/templates/discussion/mustache/_content.mustache

@@ -3,7 +3,7 @@ CONTENT MUSTACHE
   <div class="discussion-content-wrapper">
     <div class="discussion-votes">
       <a class="discussion-vote discussion-vote-up" href="javascript:void(0)" value="up">&#9650;</a>
-      <div class="discussion-votes-point">{{content.votes.point}}</div>
+      <div class="discussion-votes-point">{{content.votes.point}}<span class="sr">votes (click to vote)</span></div>
       <a class="discussion-vote discussion-vote-down" href="javascript:void(0)" value="down">&#9660;</a>
     </div>
     <div class="discussion-right-wrapper">

lms/templates/discussion/mustache/_inline_thread_show.mustache

 <div class="discussion-post local">
     <div><a href="javascript:void(0)" class="dogear action-follow" data-tooltip="follow"></a></div>
     <header>
-        <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote" data-tooltip="vote"><span class="plus-icon">+</span> <span class='votes-count-number'>{{votes.up_count}}</span></a>
+        <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote" data-tooltip="vote"><span class="plus-icon">+</span> <span class='votes-count-number'>{{votes.up_count}}</span><span class="sr">votes (click to vote)</span></a>
         <h3>{{title}}</h3>
         <div class="discussion-flag-abuse notflagged" data-role="thread-flag" data-tooltip="Report Misuse">
         <i class="icon icon-flag"></i><span class="flag-label">Flagged</span></div>

lms/templates/discussion/mustache/_profile_thread.mustache

@@ -2,7 +2,7 @@
     <div class="local"><a href="javascript:void(0)" class="dogear action-follow"></a></div>
     <div class="discussion-post local">
         <header>
-            <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote"><span class="plus-icon">+</span> <span class='votes-count-number'>{{votes.up_count}}</span></a>
+            <a href="#" class="vote-btn discussion-vote discussion-vote-up" data-role="discussion-vote"><span class="plus-icon">+</span> <span class='votes-count-number'>{{votes.up_count}}</span><span class="sr">votes (click to vote)</span></a>
             <h3>{{title}}</h3>
             <p class="posted-details">                
                 {{#user}}