Fix up RE so it picks up versions containing -bnn and -BETAn
Fix up RE so it picks up versions containing -bnn and -BETAn

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1620645 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 97ffd37d92b59215a6c53e22cf5285c567ae8b3b
apache/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,etnetera/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,ham1/jmeter