Update to current version of esp-idf.

Web forms work. URLdecode is called in the wrong place for now.

Rename settings again.

Non-volatile storage functions get renamed to nonvolatile rather than param.

Add gm_uri_param().

Web handlers now take a decoded URI structure as an argument.

Write a URI decoder.

Still working on web handlers.

Provide a way to register URL handlers for get, put, and post from startup constructors.

Add boilerplate.

Use the coroutine version to list parameters. Much neater.

Make the get_button() work correctly.

Add web subdirectory.

Clean up the way get web handlers are registered. Allow them to live in their own

Don't need a C function for every HTML tag, now that we're using the coprocessor.