Install nplan in the ubuntu-core image.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.424) UNRELEASED; urgency=medium
+
+  * Install nplan in the ubuntu-core image.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Tue, 16 Aug 2016 10:17:13 +1200
+
 livecd-rootfs (2.423) yakkety; urgency=medium
 
   [ Simon Quigley ]

live-build/auto/config

@@ -371,6 +371,7 @@ case $PROJECT in
 		# no Task: header yet
 		add_package install snapd
 		add_package install ubuntu-core-snapd-units
+		add_package install nplan
                 # we want all arches to have u-boot-tools
                 add_package install u-boot-tools