* so it happens that sometimes lws_change_pollfd is called with
bad or incomplete data structures, mainly the context pointer
obtained from wsi->protocol is null or wsi->position_in_fds_table
is -1; checks have been added to avoid this condition
This adds npn / alpn support if your openssl can handle it.
Then, browsers that understand alpn will by default
negotiate http/1.1 and work as normal.
Clients that understand http2.0 can negotiate h2-14 and
use the basic but working http2.0 support automatically
Signed-off-by: Andy Green <andy.green@linaro.org>
