Overhaul garage door example (#93)

* script for controlling garage that is aware of door states

* Overhaul garage door example

Hardware now calls for reed relay in order to be able to tell the state
of the switch. This way, we can have distinct open/close operations
that error if the door is already in that state. Allows for potential
better integration with home automation systems.

* Prepare for push to GitHub

* Restore defaults

* Make HTTP auth realm match zeroconf networking name

http/index.html

@@ -27,7 +27,7 @@
       <li><a href="zipped.html.gz">Zipped</a>: Same exact file as served above. Server is smart enough to treat the .gz extension correctly (static but gzipped)</li>
       <li><a href="args.lua">Arguments</a>: Parses arguments passed in the URL and prints them. (Lua)</li>
       <li><a href="post.lua">Post</a>: A form that uses POST method.  Displays different content based on HTTP method. (Lua)</li>
-      <li><a href="garage_door_opener.html">Garage door opener</a>: Control GPIO lines via the server. (Lua)</li>
+      <li><a href="garage_door.html">Garage door opener</a>: Control GPIO lines via the server. Or try this <a href="garage_door_control.html">simpler and nicer UI</a>. (Lua)</li>
       <li><a href="node_info.lua">NodeMCU info</a>: Shows some basic NodeMCU(Lua)</li>
       <li><a href="file_list.lua">List all server files</a>: Displays a list of all the server files. (Lua)</li>
       <li><a href="upload.html">Upload</a>: Update, remove, list files on the server. Beware security implications. By <a href="https://github.com/ATAMAH">ATAMAH</a>.</li>