Support for @cfpp2p's fork of Transmission

[runbiscuit]

@cfpp2p:

Do you have something like a rpc-spec that Transmission has, but for your fork? Would be useful when I want to implement that :)

I think it's already good with session. Arguments all showing.
The important ones added for torrent's rpc-spec would look like this.

3.1.  Torrent Action Requests

   "torrent-set-verified"     | tr_torrentSetFilesVerified


3.2.  Torrent Mutators

   Method name: "torrent-set"

   "streamingMode"       | number     STREAMING_OFF      =  0,
                                      STREAMING_WEAK     =  1,
                                      STREAMING_PRIORITY =  2,
                                      STREAMING_WEIGHTED =  3,
                                      STREAMING_FORCED   =  4,

   "downloadGroup"       | string     new group for the torrent


3.3.  Torrent Accessors

   Method name: "torrent-get".

   streamingMode               | number                      | tr_torrent

   downloadGroup               | string                      | tr_torrent


3.4.  Adding a Torrent

   Method name: "torrent-add"

   "downloadGroup"           | string      group for the torrent

[runbiscuit]

@cfpp2p What does streamingMode mean?

[cfpp2p]

Allows for immediate playback of download after short buffer period.
http://sourceforge.net/p/transmissiondaemon/discussion/general/thread/57f64ca4/#fe0d