Move videoob-webserver to contrib

Since no one seems to use it.
I fixed the biggest issues so it is now usable again!

contrib/videoob_web/videoob-webserver

@@ -20,7 +20,7 @@
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
 
-from weboob.applications.videoob_web import VideoobWeb
+from videoob_web import VideoobWeb
 
 
 if __name__ == '__main__':

contrib/videoob_web/videoob_web/videoob_web.py

@@ -99,7 +99,7 @@ class VideoobWeb(BaseApplication):
                 videos = [dict(title=video.title,
                                page_url=video.page_url,
                                url=video.url if video.url else '/download?id=%s' % video.id,
-                               thumbnail_url=video.thumbnail_url,
+                               thumbnail_url=video.thumbnail.url,
                              ) \
                          for video in backend.iter_search_results(pattern=q, nsfw=nsfw)]
                 if videos: