Use cannonical locations

Makefile

@@ -41,7 +41,7 @@ USERMODELINUX_PATCH=uml-patch-2.4.17-3.bz2
 USERMODELINUX_URI=http://prdownloads.sourceforge.net/user-mode-linux
 
 UCLIBC_SOURCE=uClibc-snapshot.tar.gz
-UCLIBC_URI=http://uclibc.org/downloads/
+UCLIBC_URI=http://www.uclibc.org/downloads/
 
 # Don't alter below this line unless you (think) you know
 # what you are doing! Danger, Danger!

busybox.mk

@@ -8,7 +8,7 @@ TARGETS_DISTCLEAN += busybox_distclean
 
 BUSYBOX_DIR=$(BASE_DIR)/${shell basename $(BUSYBOX_SOURCE) .tar.gz}
 BUSYBOX_WORKDIR=$(BASE_DIR)/busybox_workdir
-BUSYBOX_URI=http://busybox.net/downloads/
+BUSYBOX_URI=http://www.busybox.net/downloads/
 BUSYBOX_SOURCE=busybox-0.60.2.tar.gz
 
 IMAGE_SIZE += +500