Convert ssh.py to use the logging module
Convert ssh.py to use the logging module

Reviewed-by: imsnah

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