Case insensitive replacement of synopsis tags

- Some pages have tags using capital letters:

  https://www.audible.com/pd/B002V8N9VG

Contents/Code/__init__.py

@@ -542,17 +542,9 @@ def update(self, metadata, media, lang, force=False):
 
 
         #cleanup synopsis
-        synopsis = synopsis.replace("<i>", "")
-        synopsis = synopsis.replace("</i>", "")
-        synopsis = synopsis.replace("<u>", "")
-        synopsis = synopsis.replace("</u>", "")
-        synopsis = synopsis.replace("<b>", "")
-        synopsis = synopsis.replace("</b>", "")
-        synopsis = synopsis.replace("<br />", "")
-        synopsis = synopsis.replace("<p>", "")
-        synopsis = synopsis.replace("</p>", "\n")
-
-
+        synopsis = re.sub(r'<(/p|P|br ?/)>',   '\n',   synopsis)
+        synopsis = re.sub(r'<(/?[iIuUbBp])>',    '',   synopsis)
+
         self.Log('date:        %s', date)
         self.Log('title:       %s', title)
         self.Log('author:      %s', author)