Link fixes

Fixes reader button visible in detail view
Fix formats to convert (added htmlz)
Fix logger in updater
Added request "v3" of github api on update
Fix quotes parameter on external calls
E-Mail logger working more stable (also on python3)
Routing fixes
Change import in ub

cps/templates/book_edit.html

@@ -19,7 +19,7 @@
       <div class="text-center more-stuff"><h4>{{_('Delete formats:')}}</h4>
       {% for file in book.data %}
         <div class="form-group">
-          <a href="{{ url_for('web.delete_book', book_id=book.id, book_format=file.format) }}" class="btn btn-danger" type="button">{{_('Delete')}} - {{file.format}}</a>
+          <a href="{{ url_for('editbook.delete_book', book_id=book.id, book_format=file.format) }}" class="btn btn-danger" type="button">{{_('Delete')}} - {{file.format}}</a>
         </div>
       {% endfor %}
       </div>
@@ -28,7 +28,7 @@
 
 {%  if source_formats|length > 0 and conversion_formats|length > 0 %}
   <div class="text-center more-stuff"><h4>{{_('Convert book format:')}}</h4>
-      <form class="padded-bottom" action="{{ url_for('web.convert_bookformat', book_id=book.id) }}" method="post" id="book_convert_frm">
+      <form class="padded-bottom" action="{{ url_for('editbook.convert_bookformat', book_id=book.id) }}" method="post" id="book_convert_frm">
           <div class="form-group">
               <div class="text-left">
                   <label class="control-label" for="book_format_from">{{_('Convert from:')}}</label>