Move swagger-ui submodule HEAD

commit 5f3d36dbd2a98b59750d13ecc12b7e843dc809aa
Author: Amnon Heiman <amnon@cloudius-systems.com>

    Swagger-UI: Update to OSv links

commit 2976b7084c0812ce8d4bd421d91f097682266d92
Author: Amnon Heiman <amnon@cloudius-systems.com>

    Swagger-UI: Index should point to OSv json files

commit 961f32907aabddec89a8279f9060d9eb847b13ea
Author: Amnon Heiman <amnon@cloudius-systems.com>

    Swagger UI: Run dos2unix before changes

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Do not run JRuby web server by default

It seems noone is actually using this. It will be replaced
by REST API server.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Run REST API server by default

To test start with:

 make && sudo scripts/run.py -nv

After OSv boots try the API out:

 curl http://192.168.122.89:8000/os/version

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>