Install schema-image.json

Otherwise a warning is logged during startup

Change-Id: I958ab8bb7bce474d3e6854b43bb4709986fb61d4
Fixes: LP Bug#1222797
diff --git a/lib/glance b/lib/glance
index 64d8b06..7e69682 100644
--- a/lib/glance
+++ b/lib/glance
@@ -39,6 +39,7 @@
 GLANCE_API_PASTE_INI=$GLANCE_CONF_DIR/glance-api-paste.ini
 GLANCE_CACHE_CONF=$GLANCE_CONF_DIR/glance-cache.conf
 GLANCE_POLICY_JSON=$GLANCE_CONF_DIR/policy.json
+GLANCE_SCHEMA_JSON=$GLANCE_CONF_DIR/schema-image.json
 
 # Support entry points installation of console scripts
 if [[ -d $GLANCE_DIR/bin ]]; then
@@ -142,6 +143,7 @@
     iniset $GLANCE_CACHE_CONF DEFAULT admin_password $SERVICE_PASSWORD
 
     cp -p $GLANCE_DIR/etc/policy.json $GLANCE_POLICY_JSON
+    cp -p $GLANCE_DIR/etc/schema-image.json $GLANCE_SCHEMA_JSON
 }
 
 # create_glance_cache_dir() - Part of the init_glance() process