additional refinements to PDF textbooks, including making the edit buttons work again

cms/templates/js/no-textbooks.underscore

 <div class="no-textbook-content">
-    <p><%= gettext("You haven't added any textbooks to this course yet.") %><a href="#" class="button upload-button new-button"><%= gettext("Add your first textbook") %></a></p>
+    <p><%= gettext("You haven't added any textbooks to this course yet.") %><a href="#" class="button upload-button new-button"><i class="icon-plus"></i><%= gettext("Add your first textbook") %></a></p>
 </div>

cms/templates/js/textbook-edit.underscore

 <form class="edit-textbook" id="edit_textbook_form">
+  <div class="wrapper-form">
   <% if (errors) { %>
     <div id="edit_textbook_error" class="message message-status message-status error" name="edit_textbook_error">
       <%= errors %>
@@ -16,10 +17,11 @@
   <fieldset class="chapters-fields">
     <legend class="sr"><%= gettext("Chapter(s) information") %></legend>
       <ol class="chapters list-input enum"></ol>
-  </fieldset>
 
-  <div class="actions">
     <button class="action action-add-chapter"><i class="icon-plus"></i> <%= gettext("Add a Chapter") %></button>
+  </fieldset>
+  </div>
+  <div class="actions">
     <button class="action action-primary" type="submit"><%= gettext("Save") %></button>
     <button class="action action-secondary action-cancel"><%= gettext("Cancel") %></button>
   </div>

cms/templates/js/textbook-show.underscore

  <div class="view-textbook">
+
+<div class="wrap-textbook">
     <header>
         <h3 class="textbook-title"><%= name %></h3>
     </header>
@@ -15,6 +17,21 @@
     </p>
 <% } %>
 
+
+<% if(showChapters) { %>
+<ol class="chapters">
+  <% chapters.each(function(chapter) { %>
+    <li class="chapter">
+        <span class="chapter-name"><%= chapter.get('name') %></span>
+        <span class="chapter-asset-path"><%= chapter.get('asset_path') %></span>
+    </li>
+  <% }) %>
+</ol>
+<% } %>
+
+</div>
+
+
 <ul  class="actions textbook-actions">
     <li class="action action-view">
         <a href="#" class="view"><%= gettext("view in course") %></a>
@@ -29,14 +46,4 @@
 
 
 
-<% if(showChapters) { %>
-<ol class="chapters">
-  <% chapters.each(function(chapter) { %>
-    <li class="chapter">
-        <span class="chapter-name"><%= chapter.get('name') %></span>
-        <span class="chapter-asset-path"><%= chapter.get('asset_path') %></span>
-    </li>
-  <% }) %>
-</ol>
-<% } %>
 </div>