Added bittorrent special remote

addurl behavior change: When downloading an url ending in .torrent,
it will download files from bittorrent, instead of the old behavior
of adding the torrent file to the repository.

Added Recommends on aria2 and bittornado | bittorrent.

This commit was sponsored by Asbjørn Sloth Tønnesen.

Logs/Trust.hs

@@ -15,7 +15,6 @@ module Logs.Trust (
 	trustExclude,
 	lookupTrust,
 	trustMapLoad,
-	trustMapRaw,
 ) where
 
 import qualified Data.Map as M
@@ -23,7 +22,6 @@ import Data.Default
 
 import Common.Annex
 import Types.TrustLevel
-import qualified Annex.Branch
 import qualified Annex
 import Logs
 import Remote.List
@@ -77,8 +75,3 @@ trustMapLoad = do
 	configuredtrust r = (\l -> Just (Types.Remote.uuid r, l))
 		=<< readTrustLevel 
 		=<< remoteAnnexTrustLevel (Types.Remote.gitconfig r)
-
-{- Does not include forcetrust or git config values, just those from the
- - log file. -}
-trustMapRaw :: Annex TrustMap
-trustMapRaw = calcTrustMap <$> Annex.Branch.get trustLog