Merge branch 'add-buttons-tab' of https://github.com/robertperez-upc/ravada into robertperez-upc-add-buttons-tab

fix(volumes): follow links to check format

* test(volumes): check detected format in linked files

issue #1478

tested with docker-compose config

Issue #1412

issue #1475

https://github.com/twbs/bootstrap/issues/30553
Update to 3.5.1 version

Issue #1472

issue #1465

issue #1465

also skip bridge test when no root

issue #1440

also minor improvements on mojo tests

shows the warning and continues

issue #1466

issue #1442

feature(frontend): node and network settings

issue #1305

* fix(backend): reuse ports

* fixed iptables duplicated entries

issue #1429

* Translated using Weblate (Portuguese)

Currently translated at 100.0% (286 of 286 strings)

Translation: RavadaVDI/translation
Translate-URL: https://hosted.weblate.org/projects/ravada/translation/pt/



* fix(auth): properly log out in LDAP

Co-authored-by: frankiejol <frankie@telecos.upc.edu>
Co-authored-by: ssantos <ssantos@web.de>
Co-authored-by: Francesc Guasch <frankie@etsetb.upc.edu>

* fix(backend): reuse ports

* fixed iptables duplicated entries

issue #1429

* Translated using Weblate (Portuguese)

Currently translated at 38.8% (111 of 286 strings)

Translation: RavadaVDI/translation
Translate-URL: https://hosted.weblate.org/projects/ravada/translation/pt/



* Fix spice password (#1460)

fix(backend): set spice password

* refactor(test): skip tun devices
* refactor(backend): allow set ip to null

Co-authored-by: frankiejol <frankie@telecos.upc.edu>
Co-authored-by: ssantos <ssantos@web.de>

fix(backend): set spice password

* refactor(test): skip tun devices
* refactor(backend): allow set ip to null