Added warning when no certificate.
Added warning when no certificate.


git-svn-id: d57eff9e938583b0339aa5aa66b51298b78d089a@31 9a5d90b5-6617-0410-8a86-bb477d3ed2e3

igrr/axtls-8266,igrr/axtls-8266,igrr/axtls-8266,igrr/axtls-8266,igrr/axtls-8266,igrr/axtls-8266