Replace underscores in article titles

Remove underscores in article titles and replace with spaces to have
canonical state for all articles
Therefore we need to split title and posible anchors in heading parser

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=114 FS#114]

lib/redfam.py

@@ -280,8 +280,21 @@ class RedFamParser( RedFam ):
         # (Task FS#77)
         heading = mwparser.parse( str( heading ) )
 
-        # Save destinations of wikilinks in headings
-        return [ str( link.title ) for link in heading.ifilter_wikilinks() ]
+        articlesList = []
+        for link in heading.ifilter_wikilinks():
+            article = str( link.title )
+
+            # Split in title and anchor part
+            article = article.split("#", 1)
+            # Replace underscores in title with spaces
+            article[0] = article[0].replace("_", " ")
+            # Rejoin title and anchor
+            article = "#".join(article)
+
+            # Add to list
+            articlesList.append(article)
+
+        return articlesList
 
     def add_beginning( self, beginning ):
         """