NO-JIRA: fix ssl certificate generator script to set log key lifetimes

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1457782 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: regenerate SSL test certificates using longer valid lifespan

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1457783 13f79535-47bb-0310-9956-ffa450edef68