Fix signature of signal cb, start the transfer only if we have the socket path, and switch input/output streams in tp_file_start_transfer.
Fix signature of signal cb, start the transfer only if we have the socket path, and switch input/output streams in tp_file_start_transfer.

svn path=/trunk/; revision=1901

Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets