Add tooltips for toolbar buttons.
Get rid of the unnecessary TorrentManager object in the AddTorrentDialog.
Adjust the UdpTracker so it can try reconnecting again and again.
Bug fix.
Bug fixes.
Add the ability to recheck torrents.
Add the ability to add new peers.
Fix a bug when importing torrents from uTorrent.
Fix issue #10.

Make use of all trackers instead of the first successful one.
Implement sequential tracker announcing, instead of announcing them all at once.

Also temporarly disable the pieces tab, as I plan to modify it.

Trackers scraping is still untouched.
Use the correct default download folder on windows vista and later.
Remove a few compilation warnings.
Add keyboard bindings.

Also check if the torrent is loaded so we don't add it twice.
Use libtorrent instead of MonoTorrent.

Features broken:

- Magnet links

- Network interface binding

- Encryption type setting

- Torrents Events

- Peer list

- Add peer manually

- Delete data when removing torrent

- Individual torrent settings

- Hash fail count

- Webseeds tab

- Tracker generic state (working, offline)
- Tracker UpdateIn timer
- Tracker PeersCount

- .NET v4 support

Still need todo:

- Torrent state saving (well it's partially done)
- A LOT of polishing here and there
- Modify Ragnar wrapper to provide the IsValid property (and other important properties)
Add libtorrent wrapper sources.

I will not add libtorrent and boost sources, as they can be downloaded.
Various improvements and fixes.

- Added a base class to handle all libtorrent alerts.
- Fixed torrent complete event.
- Fixed torrent state changed event.
- Fixed torrent state saving and loading.
Make use of torrent_stats_updated event, and fix file progress and ETA.
Merge pull request #55 from diantahoc/master

Merge