Follow addition of key fields to instances table

plume-cli/src/instance.rs

@@ -65,6 +65,8 @@ fn new<'a>(args: &ArgMatches<'a>, conn: &Connection) {
             open_registrations: open_reg,
             short_description_html: String::new(),
             long_description_html: String::new(),
+            private_key: None,
+            public_key: None,
         },
     )
     .expect("Couldn't save instance");