Drops an openssl deprecation patch applied upstream.

Changes since 3.0.0, the following list of websocket related features:
* gzip+brotli compression in the webserver
* threadpools
* string tokenizers
* http reverse proxies
* managed disk cache

Full changes at https://libwebsockets.org/git/libwebsockets/tree/changelog?id=89eedcaa94e1c8a97ea3af10642fd224bcea068f#n4

Tested on ath79, and classic usage of libwebsockets to provide
websockets support to a C application.

Signed-off-by: Karl Palsson <karlp@etactica.com>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Removed upstreamed patch.

Also added a patch to fix Travis.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Tested-by: Karl Palsson <karlp@etactica.com>

Using the build hostname breaks reproducible builds.
The patch is already merged upstream

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

This changes the ABI and .so number, so it is only suitable for
trunk packages.  A patch included upstream has been dropped.

Full changelog:
https://github.com/warmcat/libwebsockets/blob/master/changelog

Signed-off-by: Karl Palsson <karlp@remake.is>

This includes a patch for cyassl building that has been committed
upstream, but not released.

There's no SPDX license identifier for LGPL + static linking exception,
so I've used "LGPL-2.1+exception" as suggested at
http://lwn.net/Articles/378329/

See also: https://github.com/warmcat/libwebsockets/issues/170

Signed-off-by: Karl Palsson <karlp@remake.is>