1) update the logos to svg
2) add svg icon for strict security policy where used
3) define new vhost option flag to enforce sending CSP headers
with the result code
4) add vhost option flag to minimal examples to
enforce sending CSP where applicable
5) Go through all the affecting examples confirming they
still work
6) add LWS_RECOMMENDED_MIN_HEADER_SPACE constant (currently
2048) to clarify when we need a buffer to hold headers...
with CSP the headers have become potentially a lot
larger.
This builds on the new dbus role support to provide a minimal example proxy
between ws and dbus.
A client app is provided that asks the proxy to connect to libwebsockets.org
and proxy the drawing data from the mirror example there back to the dbus
client using dbus messages.
