add `settings_package_*.js` to `commonplace includes` blacklist

lib/build.js

@@ -9,6 +9,9 @@ var blacklist = [
     'settings_inferno.js',
     'settings_local.js',
     'settings_travis.js',
+    'settings_package_prod.js',
+    'settings_package_stage.js',
+    'settings_package_dev.js',
     'tests.js',
 
     'splash.styl.css',