move to new code

Author: thomasjball

pxt.json

@@ -7,8 +7,7 @@
         "radio": "*",
         "microphone": "*",
         "datalogger": "*",
-        "user-interface-base": "github:microbit-apps/user-interface-base#v0.0.30",
-        "display-shield": "github:microbit-apps/display-shield#v1.0.9"
+        "user-interface-base": "github:microbit-apps/user-interface-base#v0.0.31"
     },
     "files": [
         "app.ts",