Logging of details for gdrive integration only on debug level

fix generic cover path
browser reading for cbx and epub files no longer creates temp files on server
browser reading for cbx and epub files working (#502, #520)

cps/templates/read.html

@@ -81,13 +81,14 @@
           window.calibre = {
               filePath: "{{ url_for('static', filename='js/libs/') }}",
               cssPath: "{{ url_for('static', filename='css/') }}",
-              bookUrl: "{{ url_for('static', filename=bookid) }}/",
               bookmarkUrl: "{{ url_for('bookmark', book_id=bookid, book_format='EPUB') }}",
+              bookUrl: "{{ url_for('get_download_link_ext', book_id=bookid, book_format="epub", anyname='file.epub') }}",
               bookmark: "{{ bookmark.bookmark_key if bookmark != None }}",
               useBookmarks: {{ g.user.is_authenticated | tojson }}
           };
       </script>
       <script src="{{ url_for('static', filename='js/libs/jquery.min.js') }}"></script>
+      <script src="{{ url_for('static', filename='js/libs/jszip.min.js') }}"></script>
       <script src="{{ url_for('static', filename='js/libs/zip.min.js') }}"></script>
       <script src="{{ url_for('static', filename='js/libs/screenfull.min.js') }}"></script>
       <script src="{{ url_for('static', filename='js/libs/epub.min.js') }}"></script>

cps/templates/readcbr.html

@@ -17,7 +17,7 @@
     <script>
             document.onreadystatechange = function () {
               if (document.readyState == "complete") {
-                init("{{ url_for('static', filename=comicfile) }}");
+                init("{{ url_for('serve_book', book_id=comicfile, book_format=extension) }}");
                 }                
             };
     </script>    

cps/templates/readpdf.html

@@ -48,7 +48,7 @@ See https://github.com/adobe-type-tools/cmap-resources
 <!--<script src="pdf.js"></script>-->
 
 <script type="text/javascript">
-  var DEFAULT_URL = "{{ url_for('serve_book', book_id=pdffile,book_format='pdf') }}";
+  var DEFAULT_URL = "{{ url_for('serve_book', book_id=pdffile, book_format='pdf') }}";
   var PDFWORKER_LOCATION="{{ url_for('static', filename='js/libs/pdf.worker.js') }}";
   // var IMAGE_LOCATION="{{ url_for('static', filename='css/../images') }}";
   var IMAGE_LOCATION="{{ url_for('static', filename='/images/') }}";