rtorrent: drop sigc dep & switch homepage

libsigc isn't used/needed any longer so drop it.
And switch to the proper homepage rather than the tarball repository.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/rtorrent/Config.in

@@ -6,14 +6,13 @@ config BR2_PACKAGE_RTORRENT
 	depends on BR2_USE_MMU # fork()
 	depends on BR2_ARCH_HAS_ATOMICS # libtorrent
 	select BR2_PACKAGE_LIBCURL
-	select BR2_PACKAGE_LIBSIGC
 	select BR2_PACKAGE_LIBTORRENT
 	select BR2_PACKAGE_NCURSES
 	select BR2_PACKAGE_OPENSSL
 	help
 	  BitTorrent Client using libtorrent
 
-	  http://rtorrent.net/downloads/
+	  https://github.com/rakshasa/rtorrent
 
 comment "rtorrent needs a toolchain w/ C++, threads, wchar"
 	depends on BR2_USE_MMU

package/rtorrent/rtorrent.mk

@@ -6,7 +6,7 @@
 
 RTORRENT_VERSION = 0.9.6
 RTORRENT_SITE = http://rtorrent.net/downloads
-RTORRENT_DEPENDENCIES = host-pkgconf libcurl libsigc libtorrent ncurses
+RTORRENT_DEPENDENCIES = host-pkgconf libcurl libtorrent ncurses
 RTORRENT_AUTORECONF = YES
 RTORRENT_LICENSE = GPLv2
 RTORRENT_LICENSE_FILES = COPYING