package/ftop: Fix broken download URL

Also use bz2 tarball and provide md5 & sha256 hashes.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ftop/Config.in

@@ -5,4 +5,4 @@ config BR2_PACKAGE_FTOP
 	  Ftop is to files what top is to processes.
 	  The progress of all open files and file systems can be monitored.
 
-	  https://code.google.com/p/ftop/
+	  https://sourceforge.net/projects/ftop/

package/ftop/ftop.hash

@@ -1,2 +1,5 @@
-# From https://code.google.com/p/ftop/downloads/detail?name=ftop-1.0.tar.gz&can=2&q=
-sha1	a0523862dd63ed3bec14846b6e05afcfdebb15c2	ftop-1.0.tar.gz
+# From https://sourceforge.net/projects/ftop/files/ftop/1.0/
+md5 57c68b6e7431f4219d9eddaebcb395da ftop-1.0.tar.bz2
+sha1 d3ef1b74825f50c7c442d299b29d23c2478f199b ftop-1.0.tar.bz2
+# Locally computed
+sha256 3a705f4f291384344cd32c3dd5f5f6a7cd7cea7624c83cb7e923966dbcd47f82  ftop-1.0.tar.bz2

package/ftop/ftop.mk

@@ -5,7 +5,8 @@
 ################################################################################
 
 FTOP_VERSION = 1.0
-FTOP_SITE = http://ftop.googlecode.com/files
+FTOP_SOURCE = ftop-$(FTOP_VERSION).tar.bz2
+FTOP_SITE = https://sourceforge.net/projects/ftop/files/ftop/$(FTOP_VERSION)
 FTOP_DEPENDENCIES = ncurses
 FTOP_LICENSE = GPL-3.0+
 FTOP_LICENSE_FILES = COPYING