Update to 1.1.2 libtorrent requirement

deluge/_libtorrent.py

@@ -24,12 +24,7 @@ try:
 except ImportError:
     import libtorrent as lt
 
-REQUIRED_VERSION = '1.1.1.0'
-
-# XXX: Remove and update required when 1.1.2 is released!
-if not hasattr(lt, 'generate_fingerprint'):
-    raise ImportError('Deluge %s requires lastest github code from libtorrent RC_1_1 branch.\n'
-                      'Ubuntu users can add the develop PPA: ppa:deluge-team/develop' % get_version())
+REQUIRED_VERSION = '1.1.2.0'
 
 if VersionSplit(lt.__version__) < VersionSplit(REQUIRED_VERSION):
     raise ImportError('Deluge %s requires libtorrent >= %s' % (get_version(), REQUIRED_VERSION))

deluge/core/torrentmanager.py

@@ -575,11 +575,6 @@ class TorrentManager(component.Component):
             else:
                 paused = False
 
-            # XXX: Temporary workaround for critical bug with RC_1_1 lt code.
-            # remove this code when lt 1.2 is released.
-            for tracker in torrent.trackers:
-                tracker.pop('last_error', None)
-
             torrent_state = TorrentState(
                 torrent.torrent_id,
                 torrent.filename,