fixed windows build
additional mingw fixes

Signed-off-by: martell <martellmalone@gmail.com>
Removed needless VS projects now that cmake is fixed
cmake and other fixes
make force_exit volatile.

Instruct the compiler to always access force_exit in memory.
Fix documentation for LWS_CALLBACK_FILTER_NETWORK_CONNECTION

At the time callback LWS_CALLBACK_FILTER_NETWORK_CONNECTION is called,
there is no client connection information yet, so the parameter wsi
still pointing to the main server connection. Add an description of
this behavior to the documentation.
add timeout between accept and negotiation

Signed-off-by: Andy Green <andy.green@linaro.org>