Complete the client Luxi implementation
Complete the client Luxi implementation

All current Luxi calls are supported after this patch. A bug in
ArchiveJob is also fixed (Ganeti's job IDs are strings).

ganeti/ganeti,apyrgio/snf-ganeti,apyrgio/ganeti,onponomarev/ganeti,bitemyapp/ganeti,yiannist/ganeti,leshchevds/ganeti,ganeti/ganeti,andir/ganeti,mbakke/ganeti,andir/ganeti,dimara/ganeti,dimara/ganeti,yiannist/ganeti,apyrgio/ganeti,andir/ganeti,bitemyapp/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,grnet/snf-ganeti,onponomarev/ganeti,mbakke/ganeti,yiannist/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,grnet/snf-ganeti,mbakke/ganeti,apyrgio/snf-ganeti,ganeti/ganeti