Correctly close the ConnectionHandler on torrent initalization failures

Signed-off-by: Maxime Petazzoni <mpetazzoni@turn.com>
Added waitForCompletion() method to block until download is complete

Closes #38.

Signed-off-by: Maxime Petazzoni <mpetazzoni@turn.com>
Merge pull request #39 from pankdm/multi-tracker-ctor

Constructors for creating multi-tracker torrents

Signed-off-by: Maxime Petazzoni <maxime.petazzoni@bulix.org>