Rename old ubuntu-core tarballs to ubuntu-base, for consistency with

the changes already made to yakkety and the ubuntu-cdimage project.
LP: #1579950.

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.208.12) trusty; urgency=medium
+
+  * Rename old ubuntu-core tarballs to ubuntu-base, for consistency with
+    the changes already made to yakkety and the ubuntu-cdimage project.
+    LP: #1579950.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Mon, 09 May 2016 17:03:01 -0700
+
 livecd-rootfs (2.208.11) trusty; urgency=medium
 
   * Only install thermald on amd64|i386 on lubuntu, fixing PPC build.

live-build/auto/config

@@ -164,7 +164,7 @@ if [ "$PREINSTALLED" = "true" ] && [ "$SUBPROJECT" != "wubi" ]; then
 		ubuntu-server)
 			add_package live oem-config-debconf ubiquity-frontend-debconf
 			;;
-		ubuntu-core|base|ubuntu-touch)
+		ubuntu-core|ubuntu-base|base|ubuntu-touch)
 			;;
 		*)
 			add_package live oem-config-gtk ubiquity-frontend-gtk
@@ -363,7 +363,7 @@ case $PROJECT in
 		PREINSTALL_POOL_SEEDS='server-ship'
 		;;
 
-	ubuntu-core)
+	ubuntu-core|ubuntu-base)
 		add_task install minimal
 		OPTS="${OPTS:+$OPTS }--bootstrap-flavour=minimal"
 		;;
@@ -451,7 +451,7 @@ case $ARCH in
 esac
 
 case $PROJECT in
-	ubuntu-server|ubuntu-core|ubuntu-touch)
+	ubuntu-server|ubuntu-core|ubuntu-base|ubuntu-touch)
 		OPTS="${OPTS:+$OPTS }--linux-packages=none --initramfs=none"
 		KERNEL_FLAVOURS=none
 		BINARY_REMOVE_LINUX=false