Fix retrieval of EFC
Fix retrieval of EFC

Due to a change in the page format,
"soup.find('h2', class_='post-title').string"
fails because find returns None.

Taking this chance to:
 - retrieve the title from the metadata
 - get the date as well
 - use an already existing function to get the
    first comic.

SylvainDe/ComicBookMaker