Merge 1.1 to master (CodeGuild-co#22)

* Add Help box

* Added Help JS

* Added style

* Added versions

* Version 1.1

* Added RC3

* Correct editor number

* Updated to RC4

* Update to RC5

* Update MicroPython to 1.0.0

* fixup! Update MicroPython to 1.0.0

* Update version

* Update version

* Update CI

* Added capability to migrate from microbit.co.uk

Author: microbit-sam

base64-js/base64.js

@@ -273,6 +273,8 @@ <h2><i class="fa fa-unlock-alt"></i> <strong>{{ title }}</strong></h2>
 	    <script src="microbit_blocks/messages/en/messages.js"></script>
         <script src="static/js/ResizeSensor.js"></script>
         <script src="static/js/ElementQueries.js"></script>
+	    <script src="lzma/lzma_worker.js"></script>
+	    <script src="base64-js/base64.js"></script>
         <script src="python-main.js"
             type="application/javascript"></script>
         <script>vex.defaultOptions.className = 'vex-theme-wireframe';</script>