mark 1.6 as stable

config.js

@@ -32,9 +32,9 @@ var config = {
   // relative image paths and branch
   directories: {
     //'../gluon/stable/factory/': 'stable',
-    '../gluon/archive/@nico/1.6-rc1/images/sysupgrade/': 'nightly',
-    '../gluon/archive/@nico/1.6-rc1/images/factory/': 'nightly',
-    '../gluon/archive/@nico/1.6-rc1/images/other/': 'nightly'
+    '../gluon/archive/@nico/1.6-rc1/images/sysupgrade/': 'stable',
+    '../gluon/archive/@nico/1.6-rc1/images/factory/': 'stable',
+    '../gluon/archive/@nico/1.6-rc1/images/other/': 'stable'
   },
   // page title
   title: 'Firmware',