Fix alioth.debian URLs that are broken

Inspired by a patch from Martin Bark <martin@barkynet.com>, this fixes
autobuild issues related to packages not downloading from alioth.debian
URLs. This patches is meant to be "temporary" until the URLs are fixed
by debian.

Fixes:
  http://autobuild.buildroot.org/results/8c3/8c34649a7f98f60f14cff8b32fa2f8e82b1afeb6
  http://autobuild.buildroot.org/results/7e3/7e34e73e40fdb0e04bd63fa889f9bc14f7e30536

Signed-off-by: Ryan Barnett <rjbarnet@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/axel/axel.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 AXEL_VERSION = 2.4
-AXEL_SITE = https://alioth.debian.org/frs/download.php/file/3015
+AXEL_SITE = http://sources.buildroot.net/
 AXEL_LICENSE = GPLv2+
 AXEL_LICENSE_FILES = COPYING
 

package/libhid/libhid.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 LIBHID_VERSION = 0.2.16
-LIBHID_SITE = http://alioth.debian.org/frs/download.php/file/1958
+LIBHID_SITE = http://sources.buildroot.net/
 LIBHID_DEPENDENCIES = libusb-compat libusb
 LIBHID_INSTALL_STAGING = YES
 LIBHID_AUTORECONF = YES

package/ltrace/ltrace.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 LTRACE_VERSION = 0.7.3
-LTRACE_SITE = http://alioth.debian.org/frs/download.php/file/3947
+LTRACE_SITE = http://sources.buildroot.net/
 LTRACE_SOURCE = ltrace-$(LTRACE_VERSION).tar.bz2
 LTRACE_DEPENDENCIES = libelf
 LTRACE_CONF_OPT = --disable-werror

package/minicom/minicom.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 MINICOM_VERSION = 2.7
-MINICOM_SITE = http://alioth.debian.org/frs/download.php/file/3977/
+MINICOM_SITE = http://sources.buildroot.net/
 MINICOM_LICENSE = GPLv2+
 MINICOM_LICENSE_FILES = COPYING
 

package/sane-backends/sane-backends.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 SANE_BACKENDS_VERSION = 1.0.22
-SANE_BACKENDS_SITE = https://alioth.debian.org/frs/download.php/file/3503
+SANE_BACKENDS_SITE = http://sources.buildroot.net/
 SANE_BACKENDS_CONFIG_SCRIPTS = sane-config
 
 ifeq ($(BR2_PACKAGE_LIBUSB),y)