qtwebkit: add support for webos required modifications

We need to extend the DOM window object with support for the PalmServiceBridge which
enables us to call ls2 services from web applications.

Signed-off-by: Simon Busch <morphis@gravedo.de>
libsdl: add version preliminary version 2.0 with wayland support

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
WIP: base-files: add dirty workaround to provide XDG_RUNTIME_DIR