lt bug fixes #1502 and #1500

libtorrent/include/libtorrent/bandwidth_manager.hpp

@@ -341,6 +341,7 @@ private:
 		{
 			assert(amount == limit - m_current_quota);
 			bw_queue_entry<PeerConnection> qe = m_queue.front();
+            assert(qe.max_block_size > 0);
 			m_queue.pop_front();
 
 			shared_ptr<Torrent> t = qe.peer->associated_torrent().lock();

libtorrent/src/peer_connection.cpp

@@ -189,6 +189,7 @@ namespace libtorrent
 		, m_download_limit(bandwidth_limit::inf)
 		, m_peer_info(peerinfo)
 		, m_speed(slow)
+        , m_connection_ticket(-1)
 		, m_remote_bytes_dled(0)
 		, m_remote_dl_rate(0)
 		, m_remote_dl_update(time_now())

libtorrent/src/piece_picker.cpp

@@ -645,6 +645,7 @@ namespace libtorrent
 			if (j->finished + j->writing >= complete) return;
 			using std::swap;
 			swap(*j, *i);
+            if (j == m_downloads.begin()) break;
 		}
 	}