* Allow passing `http_proxy_timeout` to `run_forever`

* Normalize docstring

* fix flake8 lint

Co-authored-by: Adam Wojtczak <adam.wojtczak@cybercare.cc>
Co-authored-by: engn33r <engn33r@users.noreply.github.com>

Fixes #787. Most interactions with a HTTPS website use a wss://
WebSocket, and the initial WebSocket request usually uses a https:// URL
in the Origin header. Previously, a http:// Origin header was the
default value unless a custom origin was specified. Now the Origin header will dynamically set a https:// URL
in the Origin header when a wss:// WebSocket URL is passed instead of
defaulting to http://. This can be
overridden by setting a custom "origin" parameter.

* Use bytes literal instead of bytes()

* Add UTF-8 suggestion to comments

Remove implied and redundant object class type declarations

Fixes #736

* Ping/Pong behaviour explained in Example doc.

Demoted Post-Connection features. Added context for Autobahn. Copy edit.
Corrected misstatements about auto-responding pongs (Applies to WebSocket and WebApp).
Removed example of calling pong() - not necessary.
Explained the websocketapp example including auto-pinging and checks for response.

* Improvements from review comments

Fix grammar. Add comment.

Co-authored-by: Julian-O <kraken@somethinkodd.com>