* Add ShoujoSense (reader.shoujosense.com) source.
* Change chapter date parsing to be more in line with other extensions.
* Make parseChapterDate private.
* Move SimpleDateFormat() and Pattern.compile() calls to avoid initializing more than once.
* Remove implicit return and implicit return type from popularMangaRequest() and latestUpdatesRequest(), as per @null-dev's suggestion.
* Remove unnecessary calls to jsoup Elements.first().)
* Fix manga.author and manga.description in mangaDetailsParse(), as previous implementation did not select the correct text.
* Remove print() call that was left over from debugging.
* Change popularMangaFromElement to use the correct title (exclude the latest released chapter), and remove id assignment.
