rename the ubuntu-core snap to simply be "core"

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.412) UNRELEASED; urgency=medium
+
+  * rename the ubuntu-core snap to simply be "core", update the package
+    summary too
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Fri, 27 May 2016 10:45:38 +0200
+
 livecd-rootfs (2.411) yakkety; urgency=medium
 
   [ Michael Vogt ]

live-build/auto/build

@@ -330,9 +330,9 @@ if [ "$PROJECT:$SUBPROJECT" = "ubuntu-core:system-image" ]; then
         VERSION="$(lsb_release -r -s)+$(date +20%y%m%d.%H-%M)"
 
         cat > $rootfs/meta/snap.yaml <<EOF
-name: ubuntu-core
+name: core
 version: $VERSION
-summary: The ubuntu-core OS snap
+summary: The core runtime execution environment for snapd
 architectures: [$ARCH]
 type: os
 EOF
@@ -340,7 +340,7 @@ EOF
         apt-get -y install snapcraft
         snapcraft snap $rootfs
 
-        snapfile="$(ls ubuntu-core*.snap)"
+        snapfile="$(ls core*.snap)"
         cp -a $snapfile $PREFIX.os.snap
     fi
 fi