[rebrand] - change default username of webserver from xbmc to kodi

no brainer (no need for jenkins).

I just realised that when using a plain new install of kodi and adding it to my official xbmc remote (i was like "no" when having to add "xbmc" as username :D).

@Montellese this is your button :)
Reset() doesn't return anything because the default value is always considered safe. So you need to add a `return true;`.