Added gluon-setup-mode and gluon-config-mode-core

with the latest change to Gluon, the packages

 * gluon-setup-mode and
 * gluon-config-mode-core

must now be included explicitly in the site.mk to build Gluon with
config mode (otherwise, a clean build of Gluon should fail).

site.mk

@@ -4,6 +4,8 @@ GLUON_SITE_PACKAGES := \
     gluon-announced \
     gluon-neighbour-info \
     gluon-autoupdater \
+    gluon-setup-mode \
+    gluon-config-mode-core \
     gluon-config-mode-autoupdater \
     gluon-config-mode-hostname \
     gluon-config-mode-mesh-vpn \
@@ -30,4 +32,4 @@ DEFAULT_GLUON_RELEASE := 2014.4-stable-2.1
 
 GLUON_RELEASE ?= $(DEFAULT_GLUON_RELEASE)
 GLUON_PRIORITY ?= 0
-GLUON_LANGS ?= en de
+GLUON_LANGS ?= en de