gnt-job list: deal with non-ascii encoding in jobs
gnt-job list: deal with non-ascii encoding in jobs

This fixes issue 432. If a job summary contained a non-ascii character,
gnt-job list crashed badly so far. This patch fixes the crash and makes
gnt-job list display unicode characters properly.

Signed-off-by: Helga Velroyen <2d0126b1ec6f9ec5cbec4a7012aa14faeaef10f5@google.com>
Reviewed-by: Guido Trotter <f62ca4d5358bdaeef0e50e57f9f7e231de63727e@google.com>

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