contrib: fix downloads on sourceforge.net

Using properly SF URL to download packages on this platform.
Boost and uuid was impacted by this.

Reviewed-by: Alexandre Viau <alexandre.viau@savoirfairelinux.com>
Change-Id: I613f39c59c2bef22572cba57977c01e045a1e2d6

contrib/src/boost/rules.mak

 # Boost
 BOOST_VERSION_1 := 1.61.0
 BOOST_VERSION_2 := 1_61_0
-BOOST_URL := https://downloads.sourceforge.net/project/boost/boost/$(BOOST_VERSION_1)/boost_$(BOOST_VERSION_2).tar.bz2
+BOOST_URL := $(SF)/boost/files/boost/$(BOOST_VERSION_1)/boost_$(BOOST_VERSION_2).tar.bz2/download
 
 PKGS += boost
 

contrib/src/main.mak

@@ -38,7 +38,7 @@ VPATH := $(TARBALLS)
 
 # Common download locations
 GNU := http://ftpmirror.gnu.org/
-SF := http://heanet.dl.sourceforge.net/sourceforge
+SF := https://sourceforge.net/projects
 CONTRIB_VIDEOLAN ?= http://downloads.videolan.org/pub/contrib
 
 #

contrib/src/uuid/rules.mak

 # libuuid part of util-linux
 
 UUID_VERSION := 1.0.2
-UUID_URL := $(SF)/libuuid/libuuid-$(UUID_VERSION).tar.gz
+UUID_URL := $(SF)/libuuid/files/libuuid-$(UUID_VERSION).tar.gz/download
 
 ifndef HAVE_IOS
 ifeq ($(call need_pkg,"uuid >= 2.0.0"),)