Accent in playlist name break the Youtube playlist feature

Hello,

I have noticed that having an accent in playlist name break Youtube playlist creation as the check to verify existence failed:

/root/prismedia_bin/lib/yt_upload.py:171: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
  if playlist["snippet"]['title'] == playlist_name:
2019-01-28 09:55:22,647 Youtube: Playlist Théa 2 the Shattering does not exist, creating it.

Thus the playlist is considered non-existent and prismedia creates it. In results we can have many playlist with the same name, with one video inside each.

This is probably related to the same problem we had with video name with unicode (windows/linux), need to check the comparaison.

Note: the same problem does not occurs when testing playlist name for peertube, it could be related to youtube libs?

#31 Accent in playlist name break the Youtube playlist feature